Home / 312,162,504.73-430,810,710.54-172,976,925.85

Finding the Fourth Proportional to 312,162,504.73, 430,810,710.54 and 172,976,925.85

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Solution

The fourth proportional to 312,162,504.73, 430,810,710.54 and 172,976,925.85 is: 238,722,816.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,162,504.73 : 430,810,710.54 = 172,976,925.85 : x
  2. Step 2: Convert to fraction form
    312,162,504.73/430,810,710.54 = 172,976,925.85/x
  3. Step 3: Cross multiply
    312,162,504.73x = 430,810,710.54 × 172,976,925.85
  4. Step 4: Simplify right side
    312,162,504.73x = 74,520,312,332,463,392
  5. Step 5: Solve for x
    x = 74,520,312,332,463,392/312,162,504.73
  6. Step 6: Final answer
    x = 238,722,816.49

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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.