Home / 1,228,878,229.82-1,695,524,985.83-700,230,947.36

Finding the Fourth Proportional to 1,228,878,229.82, 1,695,524,985.83 and 700,230,947.36

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Solution

The fourth proportional to 1,228,878,229.82, 1,695,524,985.83 and 700,230,947.36 is: 966,132,394.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,878,229.82 : 1,695,524,985.83 = 700,230,947.36 : x
  2. Step 2: Convert to fraction form
    1,228,878,229.82/1,695,524,985.83 = 700,230,947.36/x
  3. Step 3: Cross multiply
    1,228,878,229.82x = 1,695,524,985.83 × 700,230,947.36
  4. Step 4: Simplify right side
    1,228,878,229.82x = 1,187,259,067,088,312,832
  5. Step 5: Solve for x
    x = 1,187,259,067,088,312,832/1,228,878,229.82
  6. Step 6: Final answer
    x = 966,132,394.80

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.