Finding the Fourth Proportional to 314,935,519.20, 472,403,278.80 and 306,432,463.20
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Solution
The fourth proportional to 314,935,519.20, 472,403,278.80 and 306,432,463.20 is: 459,648,694.80
Step by Step Solution
- Step 1: Write the proportion equation
314,935,519.20 : 472,403,278.80 = 306,432,463.20 : x - Step 2: Convert to fraction form
314,935,519.20/472,403,278.80 = 306,432,463.20/x - Step 3: Cross multiply
314,935,519.20x = 472,403,278.80 × 306,432,463.20 - Step 4: Simplify right side
314,935,519.20x = 144,759,700,346,440,352 - Step 5: Solve for x
x = 144,759,700,346,440,352/314,935,519.20 - Step 6: Final answer
x = 459,648,694.80
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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.