Home / 20,120,411.10-30,165,854.40-7,983,873.30

Finding the Fourth Proportional to 20,120,411.10, 30,165,854.40 and 7,983,873.30

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Solution

The fourth proportional to 20,120,411.10, 30,165,854.40 and 7,983,873.30 is: 11,969,952.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,120,411.10 : 30,165,854.40 = 7,983,873.30 : x
  2. Step 2: Convert to fraction form
    20,120,411.10/30,165,854.40 = 7,983,873.30/x
  3. Step 3: Cross multiply
    20,120,411.10x = 30,165,854.40 × 7,983,873.30
  4. Step 4: Simplify right side
    20,120,411.10x = 240,840,359,515,847.50
  5. Step 5: Solve for x
    x = 240,840,359,515,847.50/20,120,411.10
  6. Step 6: Final answer
    x = 11,969,952.22

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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.