Home / 124,893,385.83-172,354,912.92-68,377,188.78

Finding the Fourth Proportional to 124,893,385.83, 172,354,912.92 and 68,377,188.78

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Solution

The fourth proportional to 124,893,385.83, 172,354,912.92 and 68,377,188.78 is: 94,361,637.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,893,385.83 : 172,354,912.92 = 68,377,188.78 : x
  2. Step 2: Convert to fraction form
    124,893,385.83/172,354,912.92 = 68,377,188.78/x
  3. Step 3: Cross multiply
    124,893,385.83x = 172,354,912.92 × 68,377,188.78
  4. Step 4: Simplify right side
    124,893,385.83x = 11,785,144,417,891,300
  5. Step 5: Solve for x
    x = 11,785,144,417,891,300/124,893,385.83
  6. Step 6: Final answer
    x = 94,361,637.64

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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.