Home / 131,436,345.20-197,135,855.40-45,178,732.40

Finding the Fourth Proportional to 131,436,345.20, 197,135,855.40 and 45,178,732.40

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Solution

The fourth proportional to 131,436,345.20, 197,135,855.40 and 45,178,732.40 is: 67,761,683.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,436,345.20 : 197,135,855.40 = 45,178,732.40 : x
  2. Step 2: Convert to fraction form
    131,436,345.20/197,135,855.40 = 45,178,732.40/x
  3. Step 3: Cross multiply
    131,436,345.20x = 197,135,855.40 × 45,178,732.40
  4. Step 4: Simplify right side
    131,436,345.20x = 8,906,348,057,561,695
  5. Step 5: Solve for x
    x = 8,906,348,057,561,695/131,436,345.20
  6. Step 6: Final answer
    x = 67,761,683.76

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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.