Home / 128,259,901.38-176,993,922.03-69,521,305.35

Finding the Fourth Proportional to 128,259,901.38, 176,993,922.03 and 69,521,305.35

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Solution

The fourth proportional to 128,259,901.38, 176,993,922.03 and 69,521,305.35 is: 95,936,831.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,259,901.38 : 176,993,922.03 = 69,521,305.35 : x
  2. Step 2: Convert to fraction form
    128,259,901.38/176,993,922.03 = 69,521,305.35/x
  3. Step 3: Cross multiply
    128,259,901.38x = 176,993,922.03 × 69,521,305.35
  4. Step 4: Simplify right side
    128,259,901.38x = 12,304,848,498,541,720
  5. Step 5: Solve for x
    x = 12,304,848,498,541,720/128,259,901.38
  6. Step 6: Final answer
    x = 95,936,831.12

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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.