Home / 20,747,463.90-31,100,200.65-12,223,412.70

Finding the Fourth Proportional to 20,747,463.90, 31,100,200.65 and 12,223,412.70

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Solution

The fourth proportional to 20,747,463.90, 31,100,200.65 and 12,223,412.70 is: 18,322,749.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,747,463.90 : 31,100,200.65 = 12,223,412.70 : x
  2. Step 2: Convert to fraction form
    20,747,463.90/31,100,200.65 = 12,223,412.70/x
  3. Step 3: Cross multiply
    20,747,463.90x = 31,100,200.65 × 12,223,412.70
  4. Step 4: Simplify right side
    20,747,463.90x = 380,150,587,597,758.19
  5. Step 5: Solve for x
    x = 380,150,587,597,758.19/20,747,463.90
  6. Step 6: Final answer
    x = 18,322,749.68

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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.