Home / 128,115,872.20-192,155,145.90-37,229,984.20

Finding the Fourth Proportional to 128,115,872.20, 192,155,145.90 and 37,229,984.20

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Solution

The fourth proportional to 128,115,872.20, 192,155,145.90 and 37,229,984.20 is: 55,839,553.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,115,872.20 : 192,155,145.90 = 37,229,984.20 : x
  2. Step 2: Convert to fraction form
    128,115,872.20/192,155,145.90 = 37,229,984.20/x
  3. Step 3: Cross multiply
    128,115,872.20x = 192,155,145.90 × 37,229,984.20
  4. Step 4: Simplify right side
    128,115,872.20x = 7,153,933,045,805,696
  5. Step 5: Solve for x
    x = 7,153,933,045,805,696/128,115,872.20
  6. Step 6: Final answer
    x = 55,839,553.08

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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.