Home / 398,947,194.30-598,420,791.45-245,892,186.30

Finding the Fourth Proportional to 398,947,194.30, 598,420,791.45 and 245,892,186.30

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Solution

The fourth proportional to 398,947,194.30, 598,420,791.45 and 245,892,186.30 is: 368,838,279.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,947,194.30 : 598,420,791.45 = 245,892,186.30 : x
  2. Step 2: Convert to fraction form
    398,947,194.30/598,420,791.45 = 245,892,186.30/x
  3. Step 3: Cross multiply
    398,947,194.30x = 598,420,791.45 × 245,892,186.30
  4. Step 4: Simplify right side
    398,947,194.30x = 147,146,996,737,016,864
  5. Step 5: Solve for x
    x = 147,146,996,737,016,864/398,947,194.30
  6. Step 6: Final answer
    x = 368,838,279.45

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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.