Home / 28,789,252.47-39,729,165.70-15,736,563.28

Finding the Fourth Proportional to 28,789,252.47, 39,729,165.70 and 15,736,563.28

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Solution

The fourth proportional to 28,789,252.47, 39,729,165.70 and 15,736,563.28 is: 21,716,455.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,789,252.47 : 39,729,165.70 = 15,736,563.28 : x
  2. Step 2: Convert to fraction form
    28,789,252.47/39,729,165.70 = 15,736,563.28/x
  3. Step 3: Cross multiply
    28,789,252.47x = 39,729,165.70 × 15,736,563.28
  4. Step 4: Simplify right side
    28,789,252.47x = 625,200,530,295,506.75
  5. Step 5: Solve for x
    x = 625,200,530,295,506.75/28,789,252.47
  6. Step 6: Final answer
    x = 21,716,455.85

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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.