Home / 15,692,202.76-21,664,901.10-12,442,145.80

Finding the Fourth Proportional to 15,692,202.76, 21,664,901.10 and 12,442,145.80

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Solution

The fourth proportional to 15,692,202.76, 21,664,901.10 and 12,442,145.80 is: 17,177,821.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,692,202.76 : 21,664,901.10 = 12,442,145.80 : x
  2. Step 2: Convert to fraction form
    15,692,202.76/21,664,901.10 = 12,442,145.80/x
  3. Step 3: Cross multiply
    15,692,202.76x = 21,664,901.10 × 12,442,145.80
  4. Step 4: Simplify right side
    15,692,202.76x = 269,557,858,228,780.41
  5. Step 5: Solve for x
    x = 269,557,858,228,780.41/15,692,202.76
  6. Step 6: Final answer
    x = 17,177,821.52

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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.