Home / 814,594,709.12-1,124,143,609.92-443,321,191.04

Finding the Fourth Proportional to 814,594,709.12, 1,124,143,609.92 and 443,321,191.04

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Solution

The fourth proportional to 814,594,709.12, 1,124,143,609.92 and 443,321,191.04 is: 611,784,828.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,594,709.12 : 1,124,143,609.92 = 443,321,191.04 : x
  2. Step 2: Convert to fraction form
    814,594,709.12/1,124,143,609.92 = 443,321,191.04/x
  3. Step 3: Cross multiply
    814,594,709.12x = 1,124,143,609.92 × 443,321,191.04
  4. Step 4: Simplify right side
    814,594,709.12x = 498,356,684,049,739,648
  5. Step 5: Solve for x
    x = 498,356,684,049,739,648/814,594,709.12
  6. Step 6: Final answer
    x = 611,784,828.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.