Home / 391,226,999.40-586,840,499.10-293,654,431.80

Finding the Fourth Proportional to 391,226,999.40, 586,840,499.10 and 293,654,431.80

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Solution

The fourth proportional to 391,226,999.40, 586,840,499.10 and 293,654,431.80 is: 440,481,647.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,226,999.40 : 586,840,499.10 = 293,654,431.80 : x
  2. Step 2: Convert to fraction form
    391,226,999.40/586,840,499.10 = 293,654,431.80/x
  3. Step 3: Cross multiply
    391,226,999.40x = 586,840,499.10 × 293,654,431.80
  4. Step 4: Simplify right side
    391,226,999.40x = 172,328,313,320,438,912
  5. Step 5: Solve for x
    x = 172,328,313,320,438,912/391,226,999.40
  6. Step 6: Final answer
    x = 440,481,647.70

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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.