Home / 100,787,722.80-139,087,020.60-55,002,634.80

Finding the Fourth Proportional to 100,787,722.80, 139,087,020.60 and 55,002,634.80

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Solution

The fourth proportional to 100,787,722.80, 139,087,020.60 and 55,002,634.80 is: 75,903,615.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,787,722.80 : 139,087,020.60 = 55,002,634.80 : x
  2. Step 2: Convert to fraction form
    100,787,722.80/139,087,020.60 = 55,002,634.80/x
  3. Step 3: Cross multiply
    100,787,722.80x = 139,087,020.60 × 55,002,634.80
  4. Step 4: Simplify right side
    100,787,722.80x = 7,650,152,599,481,876
  5. Step 5: Solve for x
    x = 7,650,152,599,481,876/100,787,722.80
  6. Step 6: Final answer
    x = 75,903,615.91

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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.