Home / 420,614,696.80-630,358,081.11-327,354,281.60

Finding the Fourth Proportional to 420,614,696.80, 630,358,081.11 and 327,354,281.60

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Solution

The fourth proportional to 420,614,696.80, 630,358,081.11 and 327,354,281.60 is: 490,592,502.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,614,696.80 : 630,358,081.11 = 327,354,281.60 : x
  2. Step 2: Convert to fraction form
    420,614,696.80/630,358,081.11 = 327,354,281.60/x
  3. Step 3: Cross multiply
    420,614,696.80x = 630,358,081.11 × 327,354,281.60
  4. Step 4: Simplify right side
    420,614,696.80x = 206,350,416,794,094,496
  5. Step 5: Solve for x
    x = 206,350,416,794,094,496/420,614,696.80
  6. Step 6: Final answer
    x = 490,592,502.75

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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.