Finding the Fourth Proportional to 816,507,745.20, 1,224,761,617.80 and 732,327,490.80
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Solution
The fourth proportional to 816,507,745.20, 1,224,761,617.80 and 732,327,490.80 is: 1,098,491,236.20
Step by Step Solution
- Step 1: Write the proportion equation
816,507,745.20 : 1,224,761,617.80 = 732,327,490.80 : x - Step 2: Convert to fraction form
816,507,745.20/1,224,761,617.80 = 732,327,490.80/x - Step 3: Cross multiply
816,507,745.20x = 1,224,761,617.80 × 732,327,490.80 - Step 4: Simplify right side
816,507,745.20x = 896,926,602,391,622,528 - Step 5: Solve for x
x = 896,926,602,391,622,528/816,507,745.20 - Step 6: Final answer
x = 1,098,491,236.20
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Double scale
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.