Home / 12,127,832.80-18,191,749.20-8,708,895.70

Finding the Fourth Proportional to 12,127,832.80, 18,191,749.20 and 8,708,895.70

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Solution

The fourth proportional to 12,127,832.80, 18,191,749.20 and 8,708,895.70 is: 13,063,343.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,127,832.80 : 18,191,749.20 = 8,708,895.70 : x
  2. Step 2: Convert to fraction form
    12,127,832.80/18,191,749.20 = 8,708,895.70/x
  3. Step 3: Cross multiply
    12,127,832.80x = 18,191,749.20 × 8,708,895.70
  4. Step 4: Simplify right side
    12,127,832.80x = 158,430,046,383,358.41
  5. Step 5: Solve for x
    x = 158,430,046,383,358.41/12,127,832.80
  6. Step 6: Final answer
    x = 13,063,343.55

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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.