Home / 28,587,429.60-42,876,997.20-8,390,565.60

Finding the Fourth Proportional to 28,587,429.60, 42,876,997.20 and 8,390,565.60

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Solution

The fourth proportional to 28,587,429.60, 42,876,997.20 and 8,390,565.60 is: 12,584,631.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,587,429.60 : 42,876,997.20 = 8,390,565.60 : x
  2. Step 2: Convert to fraction form
    28,587,429.60/42,876,997.20 = 8,390,565.60/x
  3. Step 3: Cross multiply
    28,587,429.60x = 42,876,997.20 × 8,390,565.60
  4. Step 4: Simplify right side
    28,587,429.60x = 359,762,257,737,616.31
  5. Step 5: Solve for x
    x = 359,762,257,737,616.31/28,587,429.60
  6. Step 6: Final answer
    x = 12,584,631.17

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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.