Home / 84,699,471.12-126,993,452.64-55,857,665.04

Finding the Fourth Proportional to 84,699,471.12, 126,993,452.64 and 55,857,665.04

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Solution

The fourth proportional to 84,699,471.12, 126,993,452.64 and 55,857,665.04 is: 83,749,728.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,699,471.12 : 126,993,452.64 = 55,857,665.04 : x
  2. Step 2: Convert to fraction form
    84,699,471.12/126,993,452.64 = 55,857,665.04/x
  3. Step 3: Cross multiply
    84,699,471.12x = 126,993,452.64 × 55,857,665.04
  4. Step 4: Simplify right side
    84,699,471.12x = 7,093,557,739,838,224
  5. Step 5: Solve for x
    x = 7,093,557,739,838,224/84,699,471.12
  6. Step 6: Final answer
    x = 83,749,728.85

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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.