Home / 391,427,153.90-540,171,607.82-230,498,158.58

Finding the Fourth Proportional to 391,427,153.90, 540,171,607.82 and 230,498,158.58

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Solution

The fourth proportional to 391,427,153.90, 540,171,607.82 and 230,498,158.58 is: 318,088,716.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,427,153.90 : 540,171,607.82 = 230,498,158.58 : x
  2. Step 2: Convert to fraction form
    391,427,153.90/540,171,607.82 = 230,498,158.58/x
  3. Step 3: Cross multiply
    391,427,153.90x = 540,171,607.82 × 230,498,158.58
  4. Step 4: Simplify right side
    391,427,153.90x = 124,508,560,915,854,592
  5. Step 5: Solve for x
    x = 124,508,560,915,854,592/391,427,153.90
  6. Step 6: Final answer
    x = 318,088,716.32

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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.