Home / 19,928,111.20-29,899,165.20-8,572,040.80

Finding the Fourth Proportional to 19,928,111.20, 29,899,165.20 and 8,572,040.80

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Solution

The fourth proportional to 19,928,111.20, 29,899,165.20 and 8,572,040.80 is: 12,861,071.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,928,111.20 : 29,899,165.20 = 8,572,040.80 : x
  2. Step 2: Convert to fraction form
    19,928,111.20/29,899,165.20 = 8,572,040.80/x
  3. Step 3: Cross multiply
    19,928,111.20x = 29,899,165.20 × 8,572,040.80
  4. Step 4: Simplify right side
    19,928,111.20x = 256,296,863,980,340.19
  5. Step 5: Solve for x
    x = 256,296,863,980,340.19/19,928,111.20
  6. Step 6: Final answer
    x = 12,861,071.55

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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.