Home / 91,987,795.20-137,981,692.80-46,638,163.20

Finding the Fourth Proportional to 91,987,795.20, 137,981,692.80 and 46,638,163.20

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Solution

The fourth proportional to 91,987,795.20, 137,981,692.80 and 46,638,163.20 is: 69,957,244.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,987,795.20 : 137,981,692.80 = 46,638,163.20 : x
  2. Step 2: Convert to fraction form
    91,987,795.20/137,981,692.80 = 46,638,163.20/x
  3. Step 3: Cross multiply
    91,987,795.20x = 137,981,692.80 × 46,638,163.20
  4. Step 4: Simplify right side
    91,987,795.20x = 6,435,212,707,418,666
  5. Step 5: Solve for x
    x = 6,435,212,707,418,666/91,987,795.20
  6. Step 6: Final answer
    x = 69,957,244.80

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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.