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Finding the Fourth Proportional to 15,551,973.20, 23,327,959.80 and 12,150,750.80

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Solution

The fourth proportional to 15,551,973.20, 23,327,959.80 and 12,150,750.80 is: 18,226,126.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,551,973.20 : 23,327,959.80 = 12,150,750.80 : x
  2. Step 2: Convert to fraction form
    15,551,973.20/23,327,959.80 = 12,150,750.80/x
  3. Step 3: Cross multiply
    15,551,973.20x = 23,327,959.80 × 12,150,750.80
  4. Step 4: Simplify right side
    15,551,973.20x = 283,452,226,202,217.88
  5. Step 5: Solve for x
    x = 283,452,226,202,217.88/15,551,973.20
  6. Step 6: Final answer
    x = 18,226,126.20

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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.