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Finding the Fourth Proportional to 300,719,808.20, 451,079,712.30 and 264,888,000.20

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Solution

The fourth proportional to 300,719,808.20, 451,079,712.30 and 264,888,000.20 is: 397,332,000.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,719,808.20 : 451,079,712.30 = 264,888,000.20 : x
  2. Step 2: Convert to fraction form
    300,719,808.20/451,079,712.30 = 264,888,000.20/x
  3. Step 3: Cross multiply
    300,719,808.20x = 451,079,712.30 × 264,888,000.20
  4. Step 4: Simplify right side
    300,719,808.20x = 119,485,602,921,938,336
  5. Step 5: Solve for x
    x = 119,485,602,921,938,336/300,719,808.20
  6. Step 6: Final answer
    x = 397,332,000.30

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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.