Home / 87,480,078.60-131,220,117.90-82,803,397.80

Finding the Fourth Proportional to 87,480,078.60, 131,220,117.90 and 82,803,397.80

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Solution

The fourth proportional to 87,480,078.60, 131,220,117.90 and 82,803,397.80 is: 124,205,096.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,480,078.60 : 131,220,117.90 = 82,803,397.80 : x
  2. Step 2: Convert to fraction form
    87,480,078.60/131,220,117.90 = 82,803,397.80/x
  3. Step 3: Cross multiply
    87,480,078.60x = 131,220,117.90 × 82,803,397.80
  4. Step 4: Simplify right side
    87,480,078.60x = 10,865,471,621,836,600
  5. Step 5: Solve for x
    x = 10,865,471,621,836,600/87,480,078.60
  6. Step 6: Final answer
    x = 124,205,096.70

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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.