Home / 1,679,620,815.60-2,519,431,223.40-861,815,785.20

Finding the Fourth Proportional to 1,679,620,815.60, 2,519,431,223.40 and 861,815,785.20

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Solution

The fourth proportional to 1,679,620,815.60, 2,519,431,223.40 and 861,815,785.20 is: 1,292,723,677.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,679,620,815.60 : 2,519,431,223.40 = 861,815,785.20 : x
  2. Step 2: Convert to fraction form
    1,679,620,815.60/2,519,431,223.40 = 861,815,785.20/x
  3. Step 3: Cross multiply
    1,679,620,815.60x = 2,519,431,223.40 × 861,815,785.20
  4. Step 4: Simplify right side
    1,679,620,815.60x = 2,171,285,598,051,867,904
  5. Step 5: Solve for x
    x = 2,171,285,598,051,867,904/1,679,620,815.60
  6. Step 6: Final answer
    x = 1,292,723,677.80

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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.