Home / 118,673,721.30-178,010,581.95-72,757,218.90

Finding the Fourth Proportional to 118,673,721.30, 178,010,581.95 and 72,757,218.90

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Solution

The fourth proportional to 118,673,721.30, 178,010,581.95 and 72,757,218.90 is: 109,135,828.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,673,721.30 : 178,010,581.95 = 72,757,218.90 : x
  2. Step 2: Convert to fraction form
    118,673,721.30/178,010,581.95 = 72,757,218.90/x
  3. Step 3: Cross multiply
    118,673,721.30x = 178,010,581.95 × 72,757,218.90
  4. Step 4: Simplify right side
    118,673,721.30x = 12,951,554,877,452,540
  5. Step 5: Solve for x
    x = 12,951,554,877,452,540/118,673,721.30
  6. Step 6: Final answer
    x = 109,135,828.35

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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.