Home / 431,569,563.90-647,354,345.85-158,883,906.30

Finding the Fourth Proportional to 431,569,563.90, 647,354,345.85 and 158,883,906.30

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Solution

The fourth proportional to 431,569,563.90, 647,354,345.85 and 158,883,906.30 is: 238,325,859.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,569,563.90 : 647,354,345.85 = 158,883,906.30 : x
  2. Step 2: Convert to fraction form
    431,569,563.90/647,354,345.85 = 158,883,906.30/x
  3. Step 3: Cross multiply
    431,569,563.90x = 647,354,345.85 × 158,883,906.30
  4. Step 4: Simplify right side
    431,569,563.90x = 102,854,187,228,929,200
  5. Step 5: Solve for x
    x = 102,854,187,228,929,200/431,569,563.90
  6. Step 6: Final answer
    x = 238,325,859.45

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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.