Home / 137,579,633.40-206,460,251.79-72,928,839.30

Finding the Fourth Proportional to 137,579,633.40, 206,460,251.79 and 72,928,839.30

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Solution

The fourth proportional to 137,579,633.40, 206,460,251.79 and 72,928,839.30 is: 109,441,391.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,579,633.40 : 206,460,251.79 = 72,928,839.30 : x
  2. Step 2: Convert to fraction form
    137,579,633.40/206,460,251.79 = 72,928,839.30/x
  3. Step 3: Cross multiply
    137,579,633.40x = 206,460,251.79 × 72,928,839.30
  4. Step 4: Simplify right side
    137,579,633.40x = 15,056,906,524,630,446
  5. Step 5: Solve for x
    x = 15,056,906,524,630,446/137,579,633.40
  6. Step 6: Final answer
    x = 109,441,391.52

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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.