scaleTo in cfchart not working

I am working on ColdFusion 9 - cfchart, Here is part of my code

<cfchart  format="flash" show3d="true"  title="Assigned Amount vs Projection Amount" scaleto="#scaleToForAmount#" scaleFrom="0"  backgroundColor="white" font="Arial" seriesplacement="stacked" chartHeight="400" chartWidth="800" labelFormat="number" > 
    <cfchartseries  type="bar"  query="chartData" itemcolumn="#variables.columnList[1]#Name" valuecolumn="PAID" seriesColor="##155D7F" seriesLabel="amout" paintStyle="plain" > 
    </cfchartseries> 
    <cfchartseries  type="bar"  query="chartData" itemcolumn="#variables.columnList[1]#Name" valuecolumn="PTP" seriesColor="##2AB9FF" paintStyle="plan" seriesLabel="PTP" > 
    </cfchartseries>
    <cfchartseries  type="bar"  query="chartData" itemcolumn="#variables.columnList[1]#Name" valuecolumn="PDC" seriesColor="##0A2E40" paintStyle="domain" seriesLabel="PDC" > 
   </cfchartseries>

But i am getting problem when value of scaleTo Increase beyond integer limit it show error. Even when converting it to string, double or bigInt it is not accepting those values. And continue to show error that "Cannot convert the value 3.1616321275E9 to an integer because it cannot fit inside an integer". Can anyone help me to get out of this.