Home / 128,259,902.62-176,993,923.72-69,521,306.60

Finding the Fourth Proportional to 128,259,902.62, 176,993,923.72 and 69,521,306.60

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Solution

The fourth proportional to 128,259,902.62, 176,993,923.72 and 69,521,306.60 is: 95,936,832.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,259,902.62 : 176,993,923.72 = 69,521,306.60 : x
  2. Step 2: Convert to fraction form
    128,259,902.62/176,993,923.72 = 69,521,306.60/x
  3. Step 3: Cross multiply
    128,259,902.62x = 176,993,923.72 × 69,521,306.60
  4. Step 4: Simplify right side
    128,259,902.62x = 12,304,848,837,275,132
  5. Step 5: Solve for x
    x = 12,304,848,837,275,132/128,259,902.62
  6. Step 6: Final answer
    x = 95,936,832.84

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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.