Home / 420,614,697.55-630,358,082.24-327,354,282.35

Finding the Fourth Proportional to 420,614,697.55, 630,358,082.24 and 327,354,282.35

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Solution

The fourth proportional to 420,614,697.55, 630,358,082.24 and 327,354,282.35 is: 490,592,503.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,614,697.55 : 630,358,082.24 = 327,354,282.35 : x
  2. Step 2: Convert to fraction form
    420,614,697.55/630,358,082.24 = 327,354,282.35/x
  3. Step 3: Cross multiply
    420,614,697.55x = 630,358,082.24 × 327,354,282.35
  4. Step 4: Simplify right side
    420,614,697.55x = 206,350,417,635,136,608
  5. Step 5: Solve for x
    x = 206,350,417,635,136,608/420,614,697.55
  6. Step 6: Final answer
    x = 490,592,503.87

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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.