Home / 131,436,337.20-197,135,843.40-45,178,724.40

Finding the Fourth Proportional to 131,436,337.20, 197,135,843.40 and 45,178,724.40

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Solution

The fourth proportional to 131,436,337.20, 197,135,843.40 and 45,178,724.40 is: 67,761,671.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,436,337.20 : 197,135,843.40 = 45,178,724.40 : x
  2. Step 2: Convert to fraction form
    131,436,337.20/197,135,843.40 = 45,178,724.40/x
  3. Step 3: Cross multiply
    131,436,337.20x = 197,135,843.40 × 45,178,724.40
  4. Step 4: Simplify right side
    131,436,337.20x = 8,906,345,938,330,159
  5. Step 5: Solve for x
    x = 8,906,345,938,330,159/131,436,337.20
  6. Step 6: Final answer
    x = 67,761,671.76

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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.