Home / 28,955,896.40-39,949,136.52-18,508,023.92

Finding the Fourth Proportional to 28,955,896.40, 39,949,136.52 and 18,508,023.92

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Solution

The fourth proportional to 28,955,896.40, 39,949,136.52 and 18,508,023.92 is: 25,534,680.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,955,896.40 : 39,949,136.52 = 18,508,023.92 : x
  2. Step 2: Convert to fraction form
    28,955,896.40/39,949,136.52 = 18,508,023.92/x
  3. Step 3: Cross multiply
    28,955,896.40x = 39,949,136.52 × 18,508,023.92
  4. Step 4: Simplify right side
    28,955,896.40x = 739,379,574,295,505.75
  5. Step 5: Solve for x
    x = 739,379,574,295,505.75/28,955,896.40
  6. Step 6: Final answer
    x = 25,534,680.88

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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.