Home / 138,024,000.20-207,036,000.30-42,273,446.60

Finding the Fourth Proportional to 138,024,000.20, 207,036,000.30 and 42,273,446.60

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Solution

The fourth proportional to 138,024,000.20, 207,036,000.30 and 42,273,446.60 is: 63,410,169.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,024,000.20 : 207,036,000.30 = 42,273,446.60 : x
  2. Step 2: Convert to fraction form
    138,024,000.20/207,036,000.30 = 42,273,446.60/x
  3. Step 3: Cross multiply
    138,024,000.20x = 207,036,000.30 × 42,273,446.60
  4. Step 4: Simplify right side
    138,024,000.20x = 8,752,125,302,959,635
  5. Step 5: Solve for x
    x = 8,752,125,302,959,635/138,024,000.20
  6. Step 6: Final answer
    x = 63,410,169.90

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1.5x scale

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.