Home / 442,886,523.40-664,329,785.10-420,715,592.20

Finding the Fourth Proportional to 442,886,523.40, 664,329,785.10 and 420,715,592.20

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Solution

The fourth proportional to 442,886,523.40, 664,329,785.10 and 420,715,592.20 is: 631,073,388.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,886,523.40 : 664,329,785.10 = 420,715,592.20 : x
  2. Step 2: Convert to fraction form
    442,886,523.40/664,329,785.10 = 420,715,592.20/x
  3. Step 3: Cross multiply
    442,886,523.40x = 664,329,785.10 × 420,715,592.20
  4. Step 4: Simplify right side
    442,886,523.40x = 279,493,898,954,445,248
  5. Step 5: Solve for x
    x = 279,493,898,954,445,248/442,886,523.40
  6. Step 6: Final answer
    x = 631,073,388.30

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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.