Home / 315,231,405.80-472,847,108.70-284,620,404.20

Finding the Fourth Proportional to 315,231,405.80, 472,847,108.70 and 284,620,404.20

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Solution

The fourth proportional to 315,231,405.80, 472,847,108.70 and 284,620,404.20 is: 426,930,606.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,231,405.80 : 472,847,108.70 = 284,620,404.20 : x
  2. Step 2: Convert to fraction form
    315,231,405.80/472,847,108.70 = 284,620,404.20/x
  3. Step 3: Cross multiply
    315,231,405.80x = 472,847,108.70 × 284,620,404.20
  4. Step 4: Simplify right side
    315,231,405.80x = 134,581,935,202,995,328
  5. Step 5: Solve for x
    x = 134,581,935,202,995,328/315,231,405.80
  6. Step 6: Final answer
    x = 426,930,606.30

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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.