Home / 31,476,209.40-47,214,314.10-18,690,132.60

Finding the Fourth Proportional to 31,476,209.40, 47,214,314.10 and 18,690,132.60

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Solution

The fourth proportional to 31,476,209.40, 47,214,314.10 and 18,690,132.60 is: 28,035,198.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,476,209.40 : 47,214,314.10 = 18,690,132.60 : x
  2. Step 2: Convert to fraction form
    31,476,209.40/47,214,314.10 = 18,690,132.60/x
  3. Step 3: Cross multiply
    31,476,209.40x = 47,214,314.10 × 18,690,132.60
  4. Step 4: Simplify right side
    31,476,209.40x = 882,441,791,147,049.75
  5. Step 5: Solve for x
    x = 882,441,791,147,049.75/31,476,209.40
  6. Step 6: Final answer
    x = 28,035,198.90

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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.