Home / 28,578,371.92-39,438,429.64-15,525,724.24

Finding the Fourth Proportional to 28,578,371.92, 39,438,429.64 and 15,525,724.24

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Solution

The fourth proportional to 28,578,371.92, 39,438,429.64 and 15,525,724.24 is: 21,425,649.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,578,371.92 : 39,438,429.64 = 15,525,724.24 : x
  2. Step 2: Convert to fraction form
    28,578,371.92/39,438,429.64 = 15,525,724.24/x
  3. Step 3: Cross multiply
    28,578,371.92x = 39,438,429.64 × 15,525,724.24
  4. Step 4: Simplify right side
    28,578,371.92x = 612,310,183,049,282.50
  5. Step 5: Solve for x
    x = 612,310,183,049,282.50/28,578,371.92
  6. Step 6: Final answer
    x = 21,425,649.61

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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.