Home / 207,903,646.20-311,855,469.30-198,337,708.20

Finding the Fourth Proportional to 207,903,646.20, 311,855,469.30 and 198,337,708.20

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Solution

The fourth proportional to 207,903,646.20, 311,855,469.30 and 198,337,708.20 is: 297,506,562.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,903,646.20 : 311,855,469.30 = 198,337,708.20 : x
  2. Step 2: Convert to fraction form
    207,903,646.20/311,855,469.30 = 198,337,708.20/x
  3. Step 3: Cross multiply
    207,903,646.20x = 311,855,469.30 × 198,337,708.20
  4. Step 4: Simplify right side
    207,903,646.20x = 61,852,699,070,597,456
  5. Step 5: Solve for x
    x = 61,852,699,070,597,456/207,903,646.20
  6. Step 6: Final answer
    x = 297,506,562.30

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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.