Home / 21,708,023.70-32,540,608.35-12,127,991.70

Finding the Fourth Proportional to 21,708,023.70, 32,540,608.35 and 12,127,991.70

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Solution

The fourth proportional to 21,708,023.70, 32,540,608.35 and 12,127,991.70 is: 18,180,016.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,708,023.70 : 32,540,608.35 = 12,127,991.70 : x
  2. Step 2: Convert to fraction form
    21,708,023.70/32,540,608.35 = 12,127,991.70/x
  3. Step 3: Cross multiply
    21,708,023.70x = 32,540,608.35 × 12,127,991.70
  4. Step 4: Simplify right side
    21,708,023.70x = 394,652,227,981,750.69
  5. Step 5: Solve for x
    x = 394,652,227,981,750.69/21,708,023.70
  6. Step 6: Final answer
    x = 18,180,016.45

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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.