Home / 125,205,304.60-187,807,956.90-86,238,213.40

Finding the Fourth Proportional to 125,205,304.60, 187,807,956.90 and 86,238,213.40

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Solution

The fourth proportional to 125,205,304.60, 187,807,956.90 and 86,238,213.40 is: 129,357,320.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,205,304.60 : 187,807,956.90 = 86,238,213.40 : x
  2. Step 2: Convert to fraction form
    125,205,304.60/187,807,956.90 = 86,238,213.40/x
  3. Step 3: Cross multiply
    125,205,304.60x = 187,807,956.90 × 86,238,213.40
  4. Step 4: Simplify right side
    125,205,304.60x = 16,196,222,665,360,204
  5. Step 5: Solve for x
    x = 16,196,222,665,360,204/125,205,304.60
  6. Step 6: Final answer
    x = 129,357,320.10

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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.