Home / 300,895,414.20-451,343,121.30-128,708,530.20

Finding the Fourth Proportional to 300,895,414.20, 451,343,121.30 and 128,708,530.20

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Solution

The fourth proportional to 300,895,414.20, 451,343,121.30 and 128,708,530.20 is: 193,062,795.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,895,414.20 : 451,343,121.30 = 128,708,530.20 : x
  2. Step 2: Convert to fraction form
    300,895,414.20/451,343,121.30 = 128,708,530.20/x
  3. Step 3: Cross multiply
    300,895,414.20x = 451,343,121.30 × 128,708,530.20
  4. Step 4: Simplify right side
    300,895,414.20x = 58,091,709,758,403,320
  5. Step 5: Solve for x
    x = 58,091,709,758,403,320/300,895,414.20
  6. Step 6: Final answer
    x = 193,062,795.30

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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.