Home / 21,160,306.76-29,201,543.28-11,869,936.22

Finding the Fourth Proportional to 21,160,306.76, 29,201,543.28 and 11,869,936.22

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Solution

The fourth proportional to 21,160,306.76, 29,201,543.28 and 11,869,936.22 is: 16,380,691.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,160,306.76 : 29,201,543.28 = 11,869,936.22 : x
  2. Step 2: Convert to fraction form
    21,160,306.76/29,201,543.28 = 11,869,936.22/x
  3. Step 3: Cross multiply
    21,160,306.76x = 29,201,543.28 × 11,869,936.22
  4. Step 4: Simplify right side
    21,160,306.76x = 346,620,456,332,173.50
  5. Step 5: Solve for x
    x = 346,620,456,332,173.50/21,160,306.76
  6. Step 6: Final answer
    x = 16,380,691.47

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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.