Home / 288,299,808.92-397,853,610.64-156,140,811.56

Finding the Fourth Proportional to 288,299,808.92, 397,853,610.64 and 156,140,811.56

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Solution

The fourth proportional to 288,299,808.92, 397,853,610.64 and 156,140,811.56 is: 215,474,251.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,299,808.92 : 397,853,610.64 = 156,140,811.56 : x
  2. Step 2: Convert to fraction form
    288,299,808.92/397,853,610.64 = 156,140,811.56/x
  3. Step 3: Cross multiply
    288,299,808.92x = 397,853,610.64 × 156,140,811.56
  4. Step 4: Simplify right side
    288,299,808.92x = 62,121,185,647,405,848
  5. Step 5: Solve for x
    x = 62,121,185,647,405,848/288,299,808.92
  6. Step 6: Final answer
    x = 215,474,251.89

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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.