Home / 288,281,458.28-397,823,495.46-156,121,380.92

Finding the Fourth Proportional to 288,281,458.28, 397,823,495.46 and 156,121,380.92

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Solution

The fourth proportional to 288,281,458.28, 397,823,495.46 and 156,121,380.92 is: 215,444,842.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,281,458.28 : 397,823,495.46 = 156,121,380.92 : x
  2. Step 2: Convert to fraction form
    288,281,458.28/397,823,495.46 = 156,121,380.92/x
  3. Step 3: Cross multiply
    288,281,458.28x = 397,823,495.46 × 156,121,380.92
  4. Step 4: Simplify right side
    288,281,458.28x = 62,108,753,471,647,424
  5. Step 5: Solve for x
    x = 62,108,753,471,647,424/288,281,458.28
  6. Step 6: Final answer
    x = 215,444,842.84

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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.