Finding the Fourth Proportional to 752,843,191.18, 1,038,878,059.98 and 418,304,274.70
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Solution
The fourth proportional to 752,843,191.18, 1,038,878,059.98 and 418,304,274.70 is: 577,234,593.44
Step by Step Solution
- Step 1: Write the proportion equation
752,843,191.18 : 1,038,878,059.98 = 418,304,274.70 : x - Step 2: Convert to fraction form
752,843,191.18/1,038,878,059.98 = 418,304,274.70/x - Step 3: Cross multiply
752,843,191.18x = 1,038,878,059.98 × 418,304,274.70 - Step 4: Simplify right side
752,843,191.18x = 434,567,133,381,676,992 - Step 5: Solve for x
x = 434,567,133,381,676,992/752,843,191.18 - Step 6: Final answer
x = 577,234,593.44
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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.