Home / 21,708,021.20-32,540,604.60-12,127,989.20

Finding the Fourth Proportional to 21,708,021.20, 32,540,604.60 and 12,127,989.20

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Solution

The fourth proportional to 21,708,021.20, 32,540,604.60 and 12,127,989.20 is: 18,180,012.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,708,021.20 : 32,540,604.60 = 12,127,989.20 : x
  2. Step 2: Convert to fraction form
    21,708,021.20/32,540,604.60 = 12,127,989.20/x
  3. Step 3: Cross multiply
    21,708,021.20x = 32,540,604.60 × 12,127,989.20
  4. Step 4: Simplify right side
    21,708,021.20x = 394,652,101,150,270.31
  5. Step 5: Solve for x
    x = 394,652,101,150,270.31/21,708,021.20
  6. Step 6: Final answer
    x = 18,180,012.70

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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.