Home / 485,119,974.20-727,679,961.30-140,084,857.40

Finding the Fourth Proportional to 485,119,974.20, 727,679,961.30 and 140,084,857.40

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Solution

The fourth proportional to 485,119,974.20, 727,679,961.30 and 140,084,857.40 is: 210,127,286.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,119,974.20 : 727,679,961.30 = 140,084,857.40 : x
  2. Step 2: Convert to fraction form
    485,119,974.20/727,679,961.30 = 140,084,857.40/x
  3. Step 3: Cross multiply
    485,119,974.20x = 727,679,961.30 × 140,084,857.40
  4. Step 4: Simplify right side
    485,119,974.20x = 101,936,943,611,548,016
  5. Step 5: Solve for x
    x = 101,936,943,611,548,016/485,119,974.20
  6. Step 6: Final answer
    x = 210,127,286.10

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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.