Home / 87,843,052.20-121,152,727.96-77,223,736.44

Finding the Fourth Proportional to 87,843,052.20, 121,152,727.96 and 77,223,736.44

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Solution

The fourth proportional to 87,843,052.20, 121,152,727.96 and 77,223,736.44 is: 106,506,617.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,843,052.20 : 121,152,727.96 = 77,223,736.44 : x
  2. Step 2: Convert to fraction form
    87,843,052.20/121,152,727.96 = 77,223,736.44/x
  3. Step 3: Cross multiply
    87,843,052.20x = 121,152,727.96 × 77,223,736.44
  4. Step 4: Simplify right side
    87,843,052.20x = 9,355,866,332,970,058
  5. Step 5: Solve for x
    x = 9,355,866,332,970,058/87,843,052.20
  6. Step 6: Final answer
    x = 106,506,617.18

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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.