Home / 21,073,085.14-29,085,535.80-12,811,391.92

Finding the Fourth Proportional to 21,073,085.14, 29,085,535.80 and 12,811,391.92

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Solution

The fourth proportional to 21,073,085.14, 29,085,535.80 and 12,811,391.92 is: 17,682,565.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,073,085.14 : 29,085,535.80 = 12,811,391.92 : x
  2. Step 2: Convert to fraction form
    21,073,085.14/29,085,535.80 = 12,811,391.92/x
  3. Step 3: Cross multiply
    21,073,085.14x = 29,085,535.80 × 12,811,391.92
  4. Step 4: Simplify right side
    21,073,085.14x = 372,626,198,336,990.75
  5. Step 5: Solve for x
    x = 372,626,198,336,990.75/21,073,085.14
  6. Step 6: Final answer
    x = 17,682,565.03

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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.