Finding the Fourth Proportional to 68,357,929.20, 94,331,593.08 and 38,998,765.68
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Solution
The fourth proportional to 68,357,929.20, 94,331,593.08 and 38,998,765.68 is: 53,816,956.39
Step by Step Solution
- Step 1: Write the proportion equation
68,357,929.20 : 94,331,593.08 = 38,998,765.68 : x - Step 2: Convert to fraction form
68,357,929.20/94,331,593.08 = 38,998,765.68/x - Step 3: Cross multiply
68,357,929.20x = 94,331,593.08 × 38,998,765.68 - Step 4: Simplify right side
68,357,929.20x = 3,678,815,694,748,029.50 - Step 5: Solve for x
x = 3,678,815,694,748,029.50/68,357,929.20 - Step 6: Final answer
x = 53,816,956.39
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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.