Home / 12,887,023.86-17,784,159.12-7,086,179.70

Finding the Fourth Proportional to 12,887,023.86, 17,784,159.12 and 7,086,179.70

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Solution

The fourth proportional to 12,887,023.86, 17,784,159.12 and 7,086,179.70 is: 9,778,964.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,887,023.86 : 17,784,159.12 = 7,086,179.70 : x
  2. Step 2: Convert to fraction form
    12,887,023.86/17,784,159.12 = 7,086,179.70/x
  3. Step 3: Cross multiply
    12,887,023.86x = 17,784,159.12 × 7,086,179.70
  4. Step 4: Simplify right side
    12,887,023.86x = 126,021,747,337,713.88
  5. Step 5: Solve for x
    x = 126,021,747,337,713.88/12,887,023.86
  6. Step 6: Final answer
    x = 9,778,964.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.