Home / 431,927,467.60-647,948,033.40-159,489,605.20

Finding the Fourth Proportional to 431,927,467.60, 647,948,033.40 and 159,489,605.20

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Solution

The fourth proportional to 431,927,467.60, 647,948,033.40 and 159,489,605.20 is: 239,255,393.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,927,467.60 : 647,948,033.40 = 159,489,605.20 : x
  2. Step 2: Convert to fraction form
    431,927,467.60/647,948,033.40 = 159,489,605.20/x
  3. Step 3: Cross multiply
    431,927,467.60x = 647,948,033.40 × 159,489,605.20
  4. Step 4: Simplify right side
    431,927,467.60x = 103,340,976,037,082,400
  5. Step 5: Solve for x
    x = 103,340,976,037,082,400/431,927,467.60
  6. Step 6: Final answer
    x = 239,255,393.07

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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.