Home / 21,073,084.14-29,085,534.42-12,811,390.92

Finding the Fourth Proportional to 21,073,084.14, 29,085,534.42 and 12,811,390.92

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Solution

The fourth proportional to 21,073,084.14, 29,085,534.42 and 12,811,390.92 is: 17,682,563.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,073,084.14 : 29,085,534.42 = 12,811,390.92 : x
  2. Step 2: Convert to fraction form
    21,073,084.14/29,085,534.42 = 12,811,390.92/x
  3. Step 3: Cross multiply
    21,073,084.14x = 29,085,534.42 × 12,811,390.92
  4. Step 4: Simplify right side
    21,073,084.14x = 372,626,151,571,735.50
  5. Step 5: Solve for x
    x = 372,626,151,571,735.50/21,073,084.14
  6. Step 6: Final answer
    x = 17,682,563.65

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1.5x scale

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.