Finding the Fourth Proportional to 751,748,132.29, 1,037,419,502.04 and 421,730,357.17
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Solution
The fourth proportional to 751,748,132.29, 1,037,419,502.04 and 421,730,357.17 is: 581,991,864.48
Step by Step Solution
- Step 1: Write the proportion equation
751,748,132.29 : 1,037,419,502.04 = 421,730,357.17 : x - Step 2: Convert to fraction form
751,748,132.29/1,037,419,502.04 = 421,730,357.17/x - Step 3: Cross multiply
751,748,132.29x = 1,037,419,502.04 × 421,730,357.17 - Step 4: Simplify right side
751,748,132.29x = 437,511,297,130,452,736 - Step 5: Solve for x
x = 437,511,297,130,452,736/751,748,132.29 - Step 6: Final answer
x = 581,991,864.48
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.