Home / 15,001,685.88-20,702,425.86-8,126,167.92

Finding the Fourth Proportional to 15,001,685.88, 20,702,425.86 and 8,126,167.92

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Solution

The fourth proportional to 15,001,685.88, 20,702,425.86 and 8,126,167.92 is: 11,214,165.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,001,685.88 : 20,702,425.86 = 8,126,167.92 : x
  2. Step 2: Convert to fraction form
    15,001,685.88/20,702,425.86 = 8,126,167.92/x
  3. Step 3: Cross multiply
    15,001,685.88x = 20,702,425.86 × 8,126,167.92
  4. Step 4: Simplify right side
    15,001,685.88x = 168,231,388,889,710.41
  5. Step 5: Solve for x
    x = 168,231,388,889,710.41/15,001,685.88
  6. Step 6: Final answer
    x = 11,214,165.54

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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.