Home / 90,131,519.94-135,178,362.65-25,420,191.39

Finding the Fourth Proportional to 90,131,519.94, 135,178,362.65 and 25,420,191.39

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Solution

The fourth proportional to 90,131,519.94, 135,178,362.65 and 25,420,191.39 is: 38,124,951.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,131,519.94 : 135,178,362.65 = 25,420,191.39 : x
  2. Step 2: Convert to fraction form
    90,131,519.94/135,178,362.65 = 25,420,191.39/x
  3. Step 3: Cross multiply
    90,131,519.94x = 135,178,362.65 × 25,420,191.39
  4. Step 4: Simplify right side
    90,131,519.94x = 3,436,259,850,341,947.50
  5. Step 5: Solve for x
    x = 3,436,259,850,341,947.50/90,131,519.94
  6. Step 6: Final answer
    x = 38,124,951.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.