Home / 20,747,894.13-31,123,335.87-7,968,398.85

Finding the Fourth Proportional to 20,747,894.13, 31,123,335.87 and 7,968,398.85

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Solution

The fourth proportional to 20,747,894.13, 31,123,335.87 and 7,968,398.85 is: 11,953,172.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,747,894.13 : 31,123,335.87 = 7,968,398.85 : x
  2. Step 2: Convert to fraction form
    20,747,894.13/31,123,335.87 = 7,968,398.85/x
  3. Step 3: Cross multiply
    20,747,894.13x = 31,123,335.87 × 7,968,398.85
  4. Step 4: Simplify right side
    20,747,894.13x = 248,003,153,754,671.75
  5. Step 5: Solve for x
    x = 248,003,153,754,671.75/20,747,894.13
  6. Step 6: Final answer
    x = 11,953,172.32

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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.