Home / 87,480,442.80-131,220,664.20-84,121,210.80

Finding the Fourth Proportional to 87,480,442.80, 131,220,664.20 and 84,121,210.80

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Solution

The fourth proportional to 87,480,442.80, 131,220,664.20 and 84,121,210.80 is: 126,181,816.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,480,442.80 : 131,220,664.20 = 84,121,210.80 : x
  2. Step 2: Convert to fraction form
    87,480,442.80/131,220,664.20 = 84,121,210.80/x
  3. Step 3: Cross multiply
    87,480,442.80x = 131,220,664.20 × 84,121,210.80
  4. Step 4: Simplify right side
    87,480,442.80x = 11,038,441,154,484,214
  5. Step 5: Solve for x
    x = 11,038,441,154,484,214/87,480,442.80
  6. Step 6: Final answer
    x = 126,181,816.20

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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.