Home / 125,874,009.90-188,811,014.85-91,861,785.90

Finding the Fourth Proportional to 125,874,009.90, 188,811,014.85 and 91,861,785.90

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Solution

The fourth proportional to 125,874,009.90, 188,811,014.85 and 91,861,785.90 is: 137,792,678.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,874,009.90 : 188,811,014.85 = 91,861,785.90 : x
  2. Step 2: Convert to fraction form
    125,874,009.90/188,811,014.85 = 91,861,785.90/x
  3. Step 3: Cross multiply
    125,874,009.90x = 188,811,014.85 × 91,861,785.90
  4. Step 4: Simplify right side
    125,874,009.90x = 17,344,517,021,712,422
  5. Step 5: Solve for x
    x = 17,344,517,021,712,422/125,874,009.90
  6. Step 6: Final answer
    x = 137,792,678.85

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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.