Home / 28,167,430.20-42,251,145.30-8,998,812.60

Finding the Fourth Proportional to 28,167,430.20, 42,251,145.30 and 8,998,812.60

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Solution

The fourth proportional to 28,167,430.20, 42,251,145.30 and 8,998,812.60 is: 13,498,218.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,167,430.20 : 42,251,145.30 = 8,998,812.60 : x
  2. Step 2: Convert to fraction form
    28,167,430.20/42,251,145.30 = 8,998,812.60/x
  3. Step 3: Cross multiply
    28,167,430.20x = 42,251,145.30 × 8,998,812.60
  4. Step 4: Simplify right side
    28,167,430.20x = 380,210,138,690,070.75
  5. Step 5: Solve for x
    x = 380,210,138,690,070.75/28,167,430.20
  6. Step 6: Final answer
    x = 13,498,218.90

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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.