Finding the Fourth Proportional to 61,119,387.20, 91,679,080.80 and 15,681,181.70
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Solution
The fourth proportional to 61,119,387.20, 91,679,080.80 and 15,681,181.70 is: 23,521,772.55
Step by Step Solution
- Step 1: Write the proportion equation
61,119,387.20 : 91,679,080.80 = 15,681,181.70 : x - Step 2: Convert to fraction form
61,119,387.20/91,679,080.80 = 15,681,181.70/x - Step 3: Cross multiply
61,119,387.20x = 91,679,080.80 × 15,681,181.70 - Step 4: Simplify right side
61,119,387.20x = 1,437,636,324,113,781.25 - Step 5: Solve for x
x = 1,437,636,324,113,781.25/61,119,387.20 - Step 6: Final answer
x = 23,521,772.55
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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.