Home / 143,787,638.80-215,681,458.20-109,775,414.80

Finding the Fourth Proportional to 143,787,638.80, 215,681,458.20 and 109,775,414.80

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Solution

The fourth proportional to 143,787,638.80, 215,681,458.20 and 109,775,414.80 is: 164,663,122.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,787,638.80 : 215,681,458.20 = 109,775,414.80 : x
  2. Step 2: Convert to fraction form
    143,787,638.80/215,681,458.20 = 109,775,414.80/x
  3. Step 3: Cross multiply
    143,787,638.80x = 215,681,458.20 × 109,775,414.80
  4. Step 4: Simplify right side
    143,787,638.80x = 23,676,521,538,573,860
  5. Step 5: Solve for x
    x = 23,676,521,538,573,860/143,787,638.80
  6. Step 6: Final answer
    x = 164,663,122.20

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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.