Home / 129,444,847.52-178,633,882.75-69,906,137.90

Finding the Fourth Proportional to 129,444,847.52, 178,633,882.75 and 69,906,137.90

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Solution

The fourth proportional to 129,444,847.52, 178,633,882.75 and 69,906,137.90 is: 96,470,466.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,444,847.52 : 178,633,882.75 = 69,906,137.90 : x
  2. Step 2: Convert to fraction form
    129,444,847.52/178,633,882.75 = 69,906,137.90/x
  3. Step 3: Cross multiply
    129,444,847.52x = 178,633,882.75 × 69,906,137.90
  4. Step 4: Simplify right side
    129,444,847.52x = 12,487,604,840,648,492
  5. Step 5: Solve for x
    x = 12,487,604,840,648,492/129,444,847.52
  6. Step 6: Final answer
    x = 96,470,466.61

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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.