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Finding the Fourth Proportional to 28,679,451.44, 42,978,062.28 and 22,939,543.52

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Solution

The fourth proportional to 28,679,451.44, 42,978,062.28 and 22,939,543.52 is: 34,376,429.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,679,451.44 : 42,978,062.28 = 22,939,543.52 : x
  2. Step 2: Convert to fraction form
    28,679,451.44/42,978,062.28 = 22,939,543.52/x
  3. Step 3: Cross multiply
    28,679,451.44x = 42,978,062.28 × 22,939,543.52
  4. Step 4: Simplify right side
    28,679,451.44x = 985,897,130,077,330.38
  5. Step 5: Solve for x
    x = 985,897,130,077,330.38/28,679,451.44
  6. Step 6: Final answer
    x = 34,376,429.14

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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.