Home / 257,946,010.20-386,919,015.30-200,479,523.40

Finding the Fourth Proportional to 257,946,010.20, 386,919,015.30 and 200,479,523.40

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Solution

The fourth proportional to 257,946,010.20, 386,919,015.30 and 200,479,523.40 is: 300,719,285.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,946,010.20 : 386,919,015.30 = 200,479,523.40 : x
  2. Step 2: Convert to fraction form
    257,946,010.20/386,919,015.30 = 200,479,523.40/x
  3. Step 3: Cross multiply
    257,946,010.20x = 386,919,015.30 × 200,479,523.40
  4. Step 4: Simplify right side
    257,946,010.20x = 77,569,339,781,741,312
  5. Step 5: Solve for x
    x = 77,569,339,781,741,312/257,946,010.20
  6. Step 6: Final answer
    x = 300,719,285.10

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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.