Home / 1,815,219,016.20-2,722,828,524.30-1,321,616,615.40

Finding the Fourth Proportional to 1,815,219,016.20, 2,722,828,524.30 and 1,321,616,615.40

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Solution

The fourth proportional to 1,815,219,016.20, 2,722,828,524.30 and 1,321,616,615.40 is: 1,982,424,923.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815,219,016.20 : 2,722,828,524.30 = 1,321,616,615.40 : x
  2. Step 2: Convert to fraction form
    1,815,219,016.20/2,722,828,524.30 = 1,321,616,615.40/x
  3. Step 3: Cross multiply
    1,815,219,016.20x = 2,722,828,524.30 × 1,321,616,615.40
  4. Step 4: Simplify right side
    1,815,219,016.20x = 3,598,535,418,599,943,168
  5. Step 5: Solve for x
    x = 3,598,535,418,599,943,168/1,815,219,016.20
  6. Step 6: Final answer
    x = 1,982,424,923.10

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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.