Home / 391,710,400.80-587,061,716.40-238,193,498.40

Finding the Fourth Proportional to 391,710,400.80, 587,061,716.40 and 238,193,498.40

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Solution

The fourth proportional to 391,710,400.80, 587,061,716.40 and 238,193,498.40 is: 356,983,842.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,710,400.80 : 587,061,716.40 = 238,193,498.40 : x
  2. Step 2: Convert to fraction form
    391,710,400.80/587,061,716.40 = 238,193,498.40/x
  3. Step 3: Cross multiply
    391,710,400.80x = 587,061,716.40 × 238,193,498.40
  4. Step 4: Simplify right side
    391,710,400.80x = 139,834,284,006,024,656
  5. Step 5: Solve for x
    x = 139,834,284,006,024,656/391,710,400.80
  6. Step 6: Final answer
    x = 356,983,842.45

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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.