Home / 20,442,734.20-30,664,101.30-12,884,462.20

Finding the Fourth Proportional to 20,442,734.20, 30,664,101.30 and 12,884,462.20

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Solution

The fourth proportional to 20,442,734.20, 30,664,101.30 and 12,884,462.20 is: 19,326,693.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,442,734.20 : 30,664,101.30 = 12,884,462.20 : x
  2. Step 2: Convert to fraction form
    20,442,734.20/30,664,101.30 = 12,884,462.20/x
  3. Step 3: Cross multiply
    20,442,734.20x = 30,664,101.30 × 12,884,462.20
  4. Step 4: Simplify right side
    20,442,734.20x = 395,090,454,096,820.88
  5. Step 5: Solve for x
    x = 395,090,454,096,820.88/20,442,734.20
  6. Step 6: Final answer
    x = 19,326,693.30

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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.