Home / 431,569,082.60-647,353,623.90-247,147,245.80

Finding the Fourth Proportional to 431,569,082.60, 647,353,623.90 and 247,147,245.80

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Solution

The fourth proportional to 431,569,082.60, 647,353,623.90 and 247,147,245.80 is: 370,720,868.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,569,082.60 : 647,353,623.90 = 247,147,245.80 : x
  2. Step 2: Convert to fraction form
    431,569,082.60/647,353,623.90 = 247,147,245.80/x
  3. Step 3: Cross multiply
    431,569,082.60x = 647,353,623.90 × 247,147,245.80
  4. Step 4: Simplify right side
    431,569,082.60x = 159,991,665,205,534,048
  5. Step 5: Solve for x
    x = 159,991,665,205,534,048/431,569,082.60
  6. Step 6: Final answer
    x = 370,720,868.70

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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.