Home / 656,368,778.64-906,067,815.48-408,972,365.04

Finding the Fourth Proportional to 656,368,778.64, 906,067,815.48 and 408,972,365.04

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Solution

The fourth proportional to 656,368,778.64, 906,067,815.48 and 408,972,365.04 is: 564,555,642.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,368,778.64 : 906,067,815.48 = 408,972,365.04 : x
  2. Step 2: Convert to fraction form
    656,368,778.64/906,067,815.48 = 408,972,365.04/x
  3. Step 3: Cross multiply
    656,368,778.64x = 906,067,815.48 × 408,972,365.04
  4. Step 4: Simplify right side
    656,368,778.64x = 370,556,697,383,481,920
  5. Step 5: Solve for x
    x = 370,556,697,383,481,920/656,368,778.64
  6. Step 6: Final answer
    x = 564,555,642.26

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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.