Home / 131,989,282.20-197,983,135.92-71,787,645.72

Finding the Fourth Proportional to 131,989,282.20, 197,983,135.92 and 71,787,645.72

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Solution

The fourth proportional to 131,989,282.20, 197,983,135.92 and 71,787,645.72 is: 107,681,040.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,989,282.20 : 197,983,135.92 = 71,787,645.72 : x
  2. Step 2: Convert to fraction form
    131,989,282.20/197,983,135.92 = 71,787,645.72/x
  3. Step 3: Cross multiply
    131,989,282.20x = 197,983,135.92 × 71,787,645.72
  4. Step 4: Simplify right side
    131,989,282.20x = 14,212,743,219,959,566
  5. Step 5: Solve for x
    x = 14,212,743,219,959,566/131,989,282.20
  6. Step 6: Final answer
    x = 107,681,040.33

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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.