Home / 408,368,530.80-612,552,796.20-149,609,907.90

Finding the Fourth Proportional to 408,368,530.80, 612,552,796.20 and 149,609,907.90

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Solution

The fourth proportional to 408,368,530.80, 612,552,796.20 and 149,609,907.90 is: 224,414,861.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,368,530.80 : 612,552,796.20 = 149,609,907.90 : x
  2. Step 2: Convert to fraction form
    408,368,530.80/612,552,796.20 = 149,609,907.90/x
  3. Step 3: Cross multiply
    408,368,530.80x = 612,552,796.20 × 149,609,907.90
  4. Step 4: Simplify right side
    408,368,530.80x = 91,643,967,423,369,488
  5. Step 5: Solve for x
    x = 91,643,967,423,369,488/408,368,530.80
  6. Step 6: Final answer
    x = 224,414,861.85

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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.