Home / 91,213,521.78-136,820,247.87-36,626,091.06

Finding the Fourth Proportional to 91,213,521.78, 136,820,247.87 and 36,626,091.06

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Solution

The fourth proportional to 91,213,521.78, 136,820,247.87 and 36,626,091.06 is: 54,939,122.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,213,521.78 : 136,820,247.87 = 36,626,091.06 : x
  2. Step 2: Convert to fraction form
    91,213,521.78/136,820,247.87 = 36,626,091.06/x
  3. Step 3: Cross multiply
    91,213,521.78x = 136,820,247.87 × 36,626,091.06
  4. Step 4: Simplify right side
    91,213,521.78x = 5,011,190,857,338,392
  5. Step 5: Solve for x
    x = 5,011,190,857,338,392/91,213,521.78
  6. Step 6: Final answer
    x = 54,939,122.62

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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.