Home / 420,615,146.36-630,358,755.92-327,354,729.35

Finding the Fourth Proportional to 420,615,146.36, 630,358,755.92 and 327,354,729.35

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Solution

The fourth proportional to 420,615,146.36, 630,358,755.92 and 327,354,729.35 is: 490,593,174.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,615,146.36 : 630,358,755.92 = 327,354,729.35 : x
  2. Step 2: Convert to fraction form
    420,615,146.36/630,358,755.92 = 327,354,729.35/x
  3. Step 3: Cross multiply
    420,615,146.36x = 630,358,755.92 × 327,354,729.35
  4. Step 4: Simplify right side
    420,615,146.36x = 206,350,919,932,805,760
  5. Step 5: Solve for x
    x = 206,350,919,932,805,760/420,615,146.36
  6. Step 6: Final answer
    x = 490,593,174.59

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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.