Home / 472,392,965.70-708,589,448.55-324,439,791.30

Finding the Fourth Proportional to 472,392,965.70, 708,589,448.55 and 324,439,791.30

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Solution

The fourth proportional to 472,392,965.70, 708,589,448.55 and 324,439,791.30 is: 486,659,686.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,965.70 : 708,589,448.55 = 324,439,791.30 : x
  2. Step 2: Convert to fraction form
    472,392,965.70/708,589,448.55 = 324,439,791.30/x
  3. Step 3: Cross multiply
    472,392,965.70x = 708,589,448.55 × 324,439,791.30
  4. Step 4: Simplify right side
    472,392,965.70x = 229,894,612,804,944,096
  5. Step 5: Solve for x
    x = 229,894,612,804,944,096/472,392,965.70
  6. Step 6: Final answer
    x = 486,659,686.95

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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.