Finding the Fourth Proportional to 288,251,387.68, 432,376,943.08 and 69,901,693.12
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Solution
The fourth proportional to 288,251,387.68, 432,376,943.08 and 69,901,693.12 is: 104,852,506.11
Step by Step Solution
- Step 1: Write the proportion equation
288,251,387.68 : 432,376,943.08 = 69,901,693.12 : x - Step 2: Convert to fraction form
288,251,387.68/432,376,943.08 = 69,901,693.12/x - Step 3: Cross multiply
288,251,387.68x = 432,376,943.08 × 69,901,693.12 - Step 4: Simplify right side
288,251,387.68x = 30,223,880,387,341,868 - Step 5: Solve for x
x = 30,223,880,387,341,868/288,251,387.68 - Step 6: Final answer
x = 104,852,506.11
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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.