Home / 28,243,375.20-42,344,067.60-15,478,293.60

Finding the Fourth Proportional to 28,243,375.20, 42,344,067.60 and 15,478,293.60

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Solution

The fourth proportional to 28,243,375.20, 42,344,067.60 and 15,478,293.60 is: 23,205,934.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,243,375.20 : 42,344,067.60 = 15,478,293.60 : x
  2. Step 2: Convert to fraction form
    28,243,375.20/42,344,067.60 = 15,478,293.60/x
  3. Step 3: Cross multiply
    28,243,375.20x = 42,344,067.60 × 15,478,293.60
  4. Step 4: Simplify right side
    28,243,375.20x = 655,413,910,531,047.38
  5. Step 5: Solve for x
    x = 655,413,910,531,047.38/28,243,375.20
  6. Step 6: Final answer
    x = 23,205,934.34

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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.