Home / 131,109,020.70-196,506,067.05-54,392,559.90

Finding the Fourth Proportional to 131,109,020.70, 196,506,067.05 and 54,392,559.90

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Solution

The fourth proportional to 131,109,020.70, 196,506,067.05 and 54,392,559.90 is: 81,523,513.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,109,020.70 : 196,506,067.05 = 54,392,559.90 : x
  2. Step 2: Convert to fraction form
    131,109,020.70/196,506,067.05 = 54,392,559.90/x
  3. Step 3: Cross multiply
    131,109,020.70x = 196,506,067.05 × 54,392,559.90
  4. Step 4: Simplify right side
    131,109,020.70x = 10,688,468,022,730,542
  5. Step 5: Solve for x
    x = 10,688,468,022,730,542/131,109,020.70
  6. Step 6: Final answer
    x = 81,523,513.53

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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.