Home / 154,784,923.08-213,596,789.41-84,220,823.61

Finding the Fourth Proportional to 154,784,923.08, 213,596,789.41 and 84,220,823.61

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Solution

The fourth proportional to 154,784,923.08, 213,596,789.41 and 84,220,823.61 is: 116,221,251.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,784,923.08 : 213,596,789.41 = 84,220,823.61 : x
  2. Step 2: Convert to fraction form
    154,784,923.08/213,596,789.41 = 84,220,823.61/x
  3. Step 3: Cross multiply
    154,784,923.08x = 213,596,789.41 × 84,220,823.61
  4. Step 4: Simplify right side
    154,784,923.08x = 17,989,297,524,351,374
  5. Step 5: Solve for x
    x = 17,989,297,524,351,374/154,784,923.08
  6. Step 6: Final answer
    x = 116,221,251.83

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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.