Home / 645,146,257.20-967,719,385.80-463,747,729.20

Finding the Fourth Proportional to 645,146,257.20, 967,719,385.80 and 463,747,729.20

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Solution

The fourth proportional to 645,146,257.20, 967,719,385.80 and 463,747,729.20 is: 695,621,593.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,146,257.20 : 967,719,385.80 = 463,747,729.20 : x
  2. Step 2: Convert to fraction form
    645,146,257.20/967,719,385.80 = 463,747,729.20/x
  3. Step 3: Cross multiply
    645,146,257.20x = 967,719,385.80 × 463,747,729.20
  4. Step 4: Simplify right side
    645,146,257.20x = 448,777,667,667,568,704
  5. Step 5: Solve for x
    x = 448,777,667,667,568,704/645,146,257.20
  6. Step 6: Final answer
    x = 695,621,593.80

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Double scale
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Similar ratio
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1.5x scale

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.