Home / 420,615,143.10-630,358,751.04-327,354,726.10

Finding the Fourth Proportional to 420,615,143.10, 630,358,751.04 and 327,354,726.10

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Solution

The fourth proportional to 420,615,143.10, 630,358,751.04 and 327,354,726.10 is: 490,593,169.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,615,143.10 : 630,358,751.04 = 327,354,726.10 : x
  2. Step 2: Convert to fraction form
    420,615,143.10/630,358,751.04 = 327,354,726.10/x
  3. Step 3: Cross multiply
    420,615,143.10x = 630,358,751.04 × 327,354,726.10
  4. Step 4: Simplify right side
    420,615,143.10x = 206,350,916,291,437,280
  5. Step 5: Solve for x
    x = 206,350,916,291,437,280/420,615,143.10
  6. Step 6: Final answer
    x = 490,593,169.73

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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.