Home / 16,906,778.90-23,331,343.02-9,171,822.68

Finding the Fourth Proportional to 16,906,778.90, 23,331,343.02 and 9,171,822.68

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Solution

The fourth proportional to 16,906,778.90, 23,331,343.02 and 9,171,822.68 is: 12,657,108.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,906,778.90 : 23,331,343.02 = 9,171,822.68 : x
  2. Step 2: Convert to fraction form
    16,906,778.90/23,331,343.02 = 9,171,822.68/x
  3. Step 3: Cross multiply
    16,906,778.90x = 23,331,343.02 × 9,171,822.68
  4. Step 4: Simplify right side
    16,906,778.90x = 213,990,941,065,695.69
  5. Step 5: Solve for x
    x = 213,990,941,065,695.69/16,906,778.90
  6. Step 6: Final answer
    x = 12,657,108.86

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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.