Finding the Fourth Proportional to 357,839,423.70, 536,699,342.94 and 99,080,800.80
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Solution
The fourth proportional to 357,839,423.70, 536,699,342.94 and 99,080,800.80 is: 148,604,645.45
Step by Step Solution
- Step 1: Write the proportion equation
357,839,423.70 : 536,699,342.94 = 99,080,800.80 : x - Step 2: Convert to fraction form
357,839,423.70/536,699,342.94 = 99,080,800.80/x - Step 3: Cross multiply
357,839,423.70x = 536,699,342.94 × 99,080,800.80 - Step 4: Simplify right side
357,839,423.70x = 53,176,600,687,329,024 - Step 5: Solve for x
x = 53,176,600,687,329,024/357,839,423.70 - Step 6: Final answer
x = 148,604,645.45
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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.