Home / 87,840,693.71-121,220,168.80-48,684,998.36

Finding the Fourth Proportional to 87,840,693.71, 121,220,168.80 and 48,684,998.36

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Solution

The fourth proportional to 87,840,693.71, 121,220,168.80 and 48,684,998.36 is: 67,185,304.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,840,693.71 : 121,220,168.80 = 48,684,998.36 : x
  2. Step 2: Convert to fraction form
    87,840,693.71/121,220,168.80 = 48,684,998.36/x
  3. Step 3: Cross multiply
    87,840,693.71x = 121,220,168.80 × 48,684,998.36
  4. Step 4: Simplify right side
    87,840,693.71x = 5,901,603,718,620,822
  5. Step 5: Solve for x
    x = 5,901,603,718,620,822/87,840,693.71
  6. Step 6: Final answer
    x = 67,185,304.10

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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.