Finding the Fourth Proportional to 391,668,194,800.65, 587,770,654,991.25 and 136,697,578,280.99
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Solution
The fourth proportional to 391,668,194,800.65, 587,770,654,991.25 and 136,697,578,280.99 is: 205,140,029,720.39
Step by Step Solution
- Step 1: Write the proportion equation
391,668,194,800.65 : 587,770,654,991.25 = 136,697,578,280.99 : x - Step 2: Convert to fraction form
391,668,194,800.65/587,770,654,991.25 = 136,697,578,280.99/x - Step 3: Cross multiply
391,668,194,800.65x = 587,770,654,991.25 × 136,697,578,280.99 - Step 4: Simplify right side
391,668,194,800.65x = 80,346,825,121,935,164,178,432 - Step 5: Solve for x
x = 80,346,825,121,935,164,178,432/391,668,194,800.65 - Step 6: Final answer
x = 205,140,029,720.39
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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.