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Finding the Fourth Proportional to 270,982,067.20, 406,473,100.80 and 89,205,625.60

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Solution

The fourth proportional to 270,982,067.20, 406,473,100.80 and 89,205,625.60 is: 133,808,438.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,982,067.20 : 406,473,100.80 = 89,205,625.60 : x
  2. Step 2: Convert to fraction form
    270,982,067.20/406,473,100.80 = 89,205,625.60/x
  3. Step 3: Cross multiply
    270,982,067.20x = 406,473,100.80 × 89,205,625.60
  4. Step 4: Simplify right side
    270,982,067.20x = 36,259,687,246,435,856
  5. Step 5: Solve for x
    x = 36,259,687,246,435,856/270,982,067.20
  6. Step 6: Final answer
    x = 133,808,438.40

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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.