Home / 65,338,189.75-90,163,939.67-35,568,218.84

Finding the Fourth Proportional to 65,338,189.75, 90,163,939.67 and 35,568,218.84

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Solution

The fourth proportional to 65,338,189.75, 90,163,939.67 and 35,568,218.84 is: 49,082,638.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,338,189.75 : 90,163,939.67 = 35,568,218.84 : x
  2. Step 2: Convert to fraction form
    65,338,189.75/90,163,939.67 = 35,568,218.84/x
  3. Step 3: Cross multiply
    65,338,189.75x = 90,163,939.67 × 35,568,218.84
  4. Step 4: Simplify right side
    65,338,189.75x = 3,206,970,737,659,118
  5. Step 5: Solve for x
    x = 3,206,970,737,659,118/65,338,189.75
  6. Step 6: Final answer
    x = 49,082,638.35

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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.