Finding the Fourth Proportional to 744,331,421.70, 1,116,497,132.55 and 732,852,296.10
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Solution
The fourth proportional to 744,331,421.70, 1,116,497,132.55 and 732,852,296.10 is: 1,099,278,444.15
Step by Step Solution
- Step 1: Write the proportion equation
744,331,421.70 : 1,116,497,132.55 = 732,852,296.10 : x - Step 2: Convert to fraction form
744,331,421.70/1,116,497,132.55 = 732,852,296.10/x - Step 3: Cross multiply
744,331,421.70x = 1,116,497,132.55 × 732,852,296.10 - Step 4: Simplify right side
744,331,421.70x = 818,227,487,178,333,568 - Step 5: Solve for x
x = 818,227,487,178,333,568/744,331,421.70 - Step 6: Final answer
x = 1,099,278,444.15
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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.