Home / 128,259,902.51-176,993,923.59-69,521,306.50

Finding the Fourth Proportional to 128,259,902.51, 176,993,923.59 and 69,521,306.50

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Solution

The fourth proportional to 128,259,902.51, 176,993,923.59 and 69,521,306.50 is: 95,936,832.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,259,902.51 : 176,993,923.59 = 69,521,306.50 : x
  2. Step 2: Convert to fraction form
    128,259,902.51/176,993,923.59 = 69,521,306.50/x
  3. Step 3: Cross multiply
    128,259,902.51x = 176,993,923.59 × 69,521,306.50
  4. Step 4: Simplify right side
    128,259,902.51x = 12,304,848,810,537,970
  5. Step 5: Solve for x
    x = 12,304,848,810,537,970/128,259,902.51
  6. Step 6: Final answer
    x = 95,936,832.71

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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.