Home / 15,149,728.17-20,906,591.54-8,274,210.57

Finding the Fourth Proportional to 15,149,728.17, 20,906,591.54 and 8,274,210.57

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Solution

The fourth proportional to 15,149,728.17, 20,906,591.54 and 8,274,210.57 is: 11,418,392.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,149,728.17 : 20,906,591.54 = 8,274,210.57 : x
  2. Step 2: Convert to fraction form
    15,149,728.17/20,906,591.54 = 8,274,210.57/x
  3. Step 3: Cross multiply
    15,149,728.17x = 20,906,591.54 × 8,274,210.57
  4. Step 4: Simplify right side
    15,149,728.17x = 172,985,540,661,569.53
  5. Step 5: Solve for x
    x = 172,985,540,661,569.53/15,149,728.17
  6. Step 6: Final answer
    x = 11,418,392.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.