Home / 31,378,411.20-47,084,335.20-12,209,793.60

Finding the Fourth Proportional to 31,378,411.20, 47,084,335.20 and 12,209,793.60

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Solution

The fourth proportional to 31,378,411.20, 47,084,335.20 and 12,209,793.60 is: 18,321,195.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,378,411.20 : 47,084,335.20 = 12,209,793.60 : x
  2. Step 2: Convert to fraction form
    31,378,411.20/47,084,335.20 = 12,209,793.60/x
  3. Step 3: Cross multiply
    31,378,411.20x = 47,084,335.20 × 12,209,793.60
  4. Step 4: Simplify right side
    31,378,411.20x = 574,890,014,585,214.75
  5. Step 5: Solve for x
    x = 574,890,014,585,214.75/31,378,411.20
  6. Step 6: Final answer
    x = 18,321,195.77

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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.