Home / 839,729,920.74-1,259,590,395.87-217,944,698.64

Finding the Fourth Proportional to 839,729,920.74, 1,259,590,395.87 and 217,944,698.64

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Solution

The fourth proportional to 839,729,920.74, 1,259,590,395.87 and 217,944,698.64 is: 326,915,883.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,729,920.74 : 1,259,590,395.87 = 217,944,698.64 : x
  2. Step 2: Convert to fraction form
    839,729,920.74/1,259,590,395.87 = 217,944,698.64/x
  3. Step 3: Cross multiply
    839,729,920.74x = 1,259,590,395.87 × 217,944,698.64
  4. Step 4: Simplify right side
    839,729,920.74x = 274,521,049,237,725,408
  5. Step 5: Solve for x
    x = 274,521,049,237,725,408/839,729,920.74
  6. Step 6: Final answer
    x = 326,915,883.85

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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.