Home / 18,517,540.30-25,554,410.01-10,257,729.12

Finding the Fourth Proportional to 18,517,540.30, 25,554,410.01 and 10,257,729.12

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Solution

The fourth proportional to 18,517,540.30, 25,554,410.01 and 10,257,729.12 is: 14,155,779.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,517,540.30 : 25,554,410.01 = 10,257,729.12 : x
  2. Step 2: Convert to fraction form
    18,517,540.30/25,554,410.01 = 10,257,729.12/x
  3. Step 3: Cross multiply
    18,517,540.30x = 25,554,410.01 × 10,257,729.12
  4. Step 4: Simplify right side
    18,517,540.30x = 262,130,215,703,996.50
  5. Step 5: Solve for x
    x = 262,130,215,703,996.50/18,517,540.30
  6. Step 6: Final answer
    x = 14,155,779.41

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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.