Home / 855,172,120.74-1,282,290,557.34-679,040,676.75

Finding the Fourth Proportional to 855,172,120.74, 1,282,290,557.34 and 679,040,676.75

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Solution

The fourth proportional to 855,172,120.74, 1,282,290,557.34 and 679,040,676.75 is: 1,018,189,703.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,172,120.74 : 1,282,290,557.34 = 679,040,676.75 : x
  2. Step 2: Convert to fraction form
    855,172,120.74/1,282,290,557.34 = 679,040,676.75/x
  3. Step 3: Cross multiply
    855,172,120.74x = 1,282,290,557.34 × 679,040,676.75
  4. Step 4: Simplify right side
    855,172,120.74x = 870,727,447,846,288,256
  5. Step 5: Solve for x
    x = 870,727,447,846,288,256/855,172,120.74
  6. Step 6: Final answer
    x = 1,018,189,703.25

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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.