Home / 28,067,319.90-42,100,979.85-13,699,604.70

Finding the Fourth Proportional to 28,067,319.90, 42,100,979.85 and 13,699,604.70

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Solution

The fourth proportional to 28,067,319.90, 42,100,979.85 and 13,699,604.70 is: 20,549,407.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,067,319.90 : 42,100,979.85 = 13,699,604.70 : x
  2. Step 2: Convert to fraction form
    28,067,319.90/42,100,979.85 = 13,699,604.70/x
  3. Step 3: Cross multiply
    28,067,319.90x = 42,100,979.85 × 13,699,604.70
  4. Step 4: Simplify right side
    28,067,319.90x = 576,766,781,427,665.25
  5. Step 5: Solve for x
    x = 576,766,781,427,665.25/28,067,319.90
  6. Step 6: Final answer
    x = 20,549,407.05

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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.