Home / 389,964,937.38-584,947,370.56-171,615,279.38

Finding the Fourth Proportional to 389,964,937.38, 584,947,370.56 and 171,615,279.38

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Solution

The fourth proportional to 389,964,937.38, 584,947,370.56 and 171,615,279.38 is: 257,422,903.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,964,937.38 : 584,947,370.56 = 171,615,279.38 : x
  2. Step 2: Convert to fraction form
    389,964,937.38/584,947,370.56 = 171,615,279.38/x
  3. Step 3: Cross multiply
    389,964,937.38x = 584,947,370.56 × 171,615,279.38
  4. Step 4: Simplify right side
    389,964,937.38x = 100,385,906,421,250,768
  5. Step 5: Solve for x
    x = 100,385,906,421,250,768/389,964,937.38
  6. Step 6: Final answer
    x = 257,422,903.44

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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.