Home / 31,702,115.86-43,748,179.74-18,650,215.30

Finding the Fourth Proportional to 31,702,115.86, 43,748,179.74 and 18,650,215.30

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Solution

The fourth proportional to 31,702,115.86, 43,748,179.74 and 18,650,215.30 is: 25,736,861.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,702,115.86 : 43,748,179.74 = 18,650,215.30 : x
  2. Step 2: Convert to fraction form
    31,702,115.86/43,748,179.74 = 18,650,215.30/x
  3. Step 3: Cross multiply
    31,702,115.86x = 43,748,179.74 × 18,650,215.30
  4. Step 4: Simplify right side
    31,702,115.86x = 815,912,971,134,098.12
  5. Step 5: Solve for x
    x = 815,912,971,134,098.12/31,702,115.86
  6. Step 6: Final answer
    x = 25,736,861.69

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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.