Home / 420,615,140.06-630,358,746.51-327,354,723.06

Finding the Fourth Proportional to 420,615,140.06, 630,358,746.51 and 327,354,723.06

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Solution

The fourth proportional to 420,615,140.06, 630,358,746.51 and 327,354,723.06 is: 490,593,165.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,615,140.06 : 630,358,746.51 = 327,354,723.06 : x
  2. Step 2: Convert to fraction form
    420,615,140.06/630,358,746.51 = 327,354,723.06/x
  3. Step 3: Cross multiply
    420,615,140.06x = 630,358,746.51 × 327,354,723.06
  4. Step 4: Simplify right side
    420,615,140.06x = 206,350,912,892,229,792
  5. Step 5: Solve for x
    x = 206,350,912,892,229,792/420,615,140.06
  6. Step 6: Final answer
    x = 490,593,165.20

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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.