Home / 12,128,974.89-16,737,760.85-6,901,867.20

Finding the Fourth Proportional to 12,128,974.89, 16,737,760.85 and 6,901,867.20

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Solution

The fourth proportional to 12,128,974.89, 16,737,760.85 and 6,901,867.20 is: 9,524,448.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,128,974.89 : 16,737,760.85 = 6,901,867.20 : x
  2. Step 2: Convert to fraction form
    12,128,974.89/16,737,760.85 = 6,901,867.20/x
  3. Step 3: Cross multiply
    12,128,974.89x = 16,737,760.85 × 6,901,867.20
  4. Step 4: Simplify right side
    12,128,974.89x = 115,521,802,577,549.80
  5. Step 5: Solve for x
    x = 115,521,802,577,549.80/12,128,974.89
  6. Step 6: Final answer
    x = 9,524,448.98

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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.