Home / 420,615,141.85-630,358,749.17-327,354,724.85

Finding the Fourth Proportional to 420,615,141.85, 630,358,749.17 and 327,354,724.85

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Solution

The fourth proportional to 420,615,141.85, 630,358,749.17 and 327,354,724.85 is: 490,593,167.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,615,141.85 : 630,358,749.17 = 327,354,724.85 : x
  2. Step 2: Convert to fraction form
    420,615,141.85/630,358,749.17 = 327,354,724.85/x
  3. Step 3: Cross multiply
    420,615,141.85x = 630,358,749.17 × 327,354,724.85
  4. Step 4: Simplify right side
    420,615,141.85x = 206,350,914,886,546,944
  5. Step 5: Solve for x
    x = 206,350,914,886,546,944/420,615,141.85
  6. Step 6: Final answer
    x = 490,593,167.85

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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.