Home / 81,256,500.66-121,859,147.71-26,656,363.04

Finding the Fourth Proportional to 81,256,500.66, 121,859,147.71 and 26,656,363.04

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Solution

The fourth proportional to 81,256,500.66, 121,859,147.71 and 26,656,363.04 is: 39,976,145.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,256,500.66 : 121,859,147.71 = 26,656,363.04 : x
  2. Step 2: Convert to fraction form
    81,256,500.66/121,859,147.71 = 26,656,363.04/x
  3. Step 3: Cross multiply
    81,256,500.66x = 121,859,147.71 × 26,656,363.04
  4. Step 4: Simplify right side
    81,256,500.66x = 3,248,321,680,659,885
  5. Step 5: Solve for x
    x = 3,248,321,680,659,885/81,256,500.66
  6. Step 6: Final answer
    x = 39,976,145.35

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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.