Home / 389,964,937.88-584,947,371.31-171,615,279.88

Finding the Fourth Proportional to 389,964,937.88, 584,947,371.31 and 171,615,279.88

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Solution

The fourth proportional to 389,964,937.88, 584,947,371.31 and 171,615,279.88 is: 257,422,904.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,964,937.88 : 584,947,371.31 = 171,615,279.88 : x
  2. Step 2: Convert to fraction form
    389,964,937.88/584,947,371.31 = 171,615,279.88/x
  3. Step 3: Cross multiply
    389,964,937.88x = 584,947,371.31 × 171,615,279.88
  4. Step 4: Simplify right side
    389,964,937.88x = 100,385,906,842,435,920
  5. Step 5: Solve for x
    x = 100,385,906,842,435,920/389,964,937.88
  6. Step 6: Final answer
    x = 257,422,904.19

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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.