Home / 1,309,765,976.20-1,964,648,964.30-654,818,087.80

Finding the Fourth Proportional to 1,309,765,976.20, 1,964,648,964.30 and 654,818,087.80

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Solution

The fourth proportional to 1,309,765,976.20, 1,964,648,964.30 and 654,818,087.80 is: 982,227,131.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,765,976.20 : 1,964,648,964.30 = 654,818,087.80 : x
  2. Step 2: Convert to fraction form
    1,309,765,976.20/1,964,648,964.30 = 654,818,087.80/x
  3. Step 3: Cross multiply
    1,309,765,976.20x = 1,964,648,964.30 × 654,818,087.80
  4. Step 4: Simplify right side
    1,309,765,976.20x = 1,286,487,678,001,176,320
  5. Step 5: Solve for x
    x = 1,286,487,678,001,176,320/1,309,765,976.20
  6. Step 6: Final answer
    x = 982,227,131.70

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Double scale
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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.