Finding the Fourth Proportional to 816,507,626.20, 1,224,761,439.30 and 732,327,371.80
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Solution
The fourth proportional to 816,507,626.20, 1,224,761,439.30 and 732,327,371.80 is: 1,098,491,057.70
Step by Step Solution
- Step 1: Write the proportion equation
816,507,626.20 : 1,224,761,439.30 = 732,327,371.80 : x - Step 2: Convert to fraction form
816,507,626.20/1,224,761,439.30 = 732,327,371.80/x - Step 3: Cross multiply
816,507,626.20x = 1,224,761,439.30 × 732,327,371.80 - Step 4: Simplify right side
816,507,626.20x = 896,926,325,924,554,112 - Step 5: Solve for x
x = 896,926,325,924,554,112/816,507,626.20 - Step 6: Final answer
x = 1,098,491,057.70
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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.