Home / 91,088,578.80-136,632,868.20-82,302,087.60

Finding the Fourth Proportional to 91,088,578.80, 136,632,868.20 and 82,302,087.60

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Solution

The fourth proportional to 91,088,578.80, 136,632,868.20 and 82,302,087.60 is: 123,453,131.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,088,578.80 : 136,632,868.20 = 82,302,087.60 : x
  2. Step 2: Convert to fraction form
    91,088,578.80/136,632,868.20 = 82,302,087.60/x
  3. Step 3: Cross multiply
    91,088,578.80x = 136,632,868.20 × 82,302,087.60
  4. Step 4: Simplify right side
    91,088,578.80x = 11,245,170,287,635,652
  5. Step 5: Solve for x
    x = 11,245,170,287,635,652/91,088,578.80
  6. Step 6: Final answer
    x = 123,453,131.40

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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.