Home / 839,815,215.60-1,259,722,823.40-294,485,890.80

Finding the Fourth Proportional to 839,815,215.60, 1,259,722,823.40 and 294,485,890.80

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Solution

The fourth proportional to 839,815,215.60, 1,259,722,823.40 and 294,485,890.80 is: 441,728,836.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,815,215.60 : 1,259,722,823.40 = 294,485,890.80 : x
  2. Step 2: Convert to fraction form
    839,815,215.60/1,259,722,823.40 = 294,485,890.80/x
  3. Step 3: Cross multiply
    839,815,215.60x = 1,259,722,823.40 × 294,485,890.80
  4. Step 4: Simplify right side
    839,815,215.60x = 370,970,597,810,040,128
  5. Step 5: Solve for x
    x = 370,970,597,810,040,128/839,815,215.60
  6. Step 6: Final answer
    x = 441,728,836.20

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Double scale
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Similar ratio
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1.5x scale

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.