Home / 141,657,965.82-195,482,831.81-78,930,822.75

Finding the Fourth Proportional to 141,657,965.82, 195,482,831.81 and 78,930,822.75

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Solution

The fourth proportional to 141,657,965.82, 195,482,831.81 and 78,930,822.75 is: 108,921,659.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,657,965.82 : 195,482,831.81 = 78,930,822.75 : x
  2. Step 2: Convert to fraction form
    141,657,965.82/195,482,831.81 = 78,930,822.75/x
  3. Step 3: Cross multiply
    141,657,965.82x = 195,482,831.81 × 78,930,822.75
  4. Step 4: Simplify right side
    141,657,965.82x = 15,429,620,747,135,458
  5. Step 5: Solve for x
    x = 15,429,620,747,135,458/141,657,965.82
  6. Step 6: Final answer
    x = 108,921,659.70

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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.