Home / 420,151,763.70-630,227,645.55-267,474,669.30

Finding the Fourth Proportional to 420,151,763.70, 630,227,645.55 and 267,474,669.30

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Solution

The fourth proportional to 420,151,763.70, 630,227,645.55 and 267,474,669.30 is: 401,212,003.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,151,763.70 : 630,227,645.55 = 267,474,669.30 : x
  2. Step 2: Convert to fraction form
    420,151,763.70/630,227,645.55 = 267,474,669.30/x
  3. Step 3: Cross multiply
    420,151,763.70x = 630,227,645.55 × 267,474,669.30
  4. Step 4: Simplify right side
    420,151,763.70x = 168,569,931,077,203,872
  5. Step 5: Solve for x
    x = 168,569,931,077,203,872/420,151,763.70
  6. Step 6: Final answer
    x = 401,212,003.95

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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.