Home / 131,488,019.07-197,258,928.71-45,215,221.47

Finding the Fourth Proportional to 131,488,019.07, 197,258,928.71 and 45,215,221.47

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Solution

The fourth proportional to 131,488,019.07, 197,258,928.71 and 45,215,221.47 is: 67,832,082.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,488,019.07 : 197,258,928.71 = 45,215,221.47 : x
  2. Step 2: Convert to fraction form
    131,488,019.07/197,258,928.71 = 45,215,221.47/x
  3. Step 3: Cross multiply
    131,488,019.07x = 197,258,928.71 × 45,215,221.47
  4. Step 4: Simplify right side
    131,488,019.07x = 8,919,106,148,331,516
  5. Step 5: Solve for x
    x = 8,919,106,148,331,516/131,488,019.07
  6. Step 6: Final answer
    x = 67,832,082.43

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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.