Home / 21,708,012.20-32,540,591.10-12,127,980.20

Finding the Fourth Proportional to 21,708,012.20, 32,540,591.10 and 12,127,980.20

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Solution

The fourth proportional to 21,708,012.20, 32,540,591.10 and 12,127,980.20 is: 18,179,999.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,708,012.20 : 32,540,591.10 = 12,127,980.20 : x
  2. Step 2: Convert to fraction form
    21,708,012.20/32,540,591.10 = 12,127,980.20/x
  3. Step 3: Cross multiply
    21,708,012.20x = 32,540,591.10 × 12,127,980.20
  4. Step 4: Simplify right side
    21,708,012.20x = 394,651,644,557,096.19
  5. Step 5: Solve for x
    x = 394,651,644,557,096.19/21,708,012.20
  6. Step 6: Final answer
    x = 18,179,999.21

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1.5x scale

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.