Home / 87,403,803.60-131,105,705.40-83,671,906.80

Finding the Fourth Proportional to 87,403,803.60, 131,105,705.40 and 83,671,906.80

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Solution

The fourth proportional to 87,403,803.60, 131,105,705.40 and 83,671,906.80 is: 125,507,860.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,403,803.60 : 131,105,705.40 = 83,671,906.80 : x
  2. Step 2: Convert to fraction form
    87,403,803.60/131,105,705.40 = 83,671,906.80/x
  3. Step 3: Cross multiply
    87,403,803.60x = 131,105,705.40 × 83,671,906.80
  4. Step 4: Simplify right side
    87,403,803.60x = 10,969,864,363,177,056
  5. Step 5: Solve for x
    x = 10,969,864,363,177,056/87,403,803.60
  6. Step 6: Final answer
    x = 125,507,860.20

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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.