Home / 72,504,450.75-100,058,268.78-39,466,855.09

Finding the Fourth Proportional to 72,504,450.75, 100,058,268.78 and 39,466,855.09

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Solution

The fourth proportional to 72,504,450.75, 100,058,268.78 and 39,466,855.09 is: 54,465,417.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,504,450.75 : 100,058,268.78 = 39,466,855.09 : x
  2. Step 2: Convert to fraction form
    72,504,450.75/100,058,268.78 = 39,466,855.09/x
  3. Step 3: Cross multiply
    72,504,450.75x = 100,058,268.78 × 39,466,855.09
  4. Step 4: Simplify right side
    72,504,450.75x = 3,948,985,194,496,531.50
  5. Step 5: Solve for x
    x = 3,948,985,194,496,531.50/72,504,450.75
  6. Step 6: Final answer
    x = 54,465,417.69

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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.