Home / 131,488,029.32-197,258,944.08-45,215,231.72

Finding the Fourth Proportional to 131,488,029.32, 197,258,944.08 and 45,215,231.72

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Solution

The fourth proportional to 131,488,029.32, 197,258,944.08 and 45,215,231.72 is: 67,832,097.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,488,029.32 : 197,258,944.08 = 45,215,231.72 : x
  2. Step 2: Convert to fraction form
    131,488,029.32/197,258,944.08 = 45,215,231.72/x
  3. Step 3: Cross multiply
    131,488,029.32x = 197,258,944.08 × 45,215,231.72
  4. Step 4: Simplify right side
    131,488,029.32x = 8,919,108,865,419,723
  5. Step 5: Solve for x
    x = 8,919,108,865,419,723/131,488,029.32
  6. Step 6: Final answer
    x = 67,832,097.81

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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.