Home / 28,949,257.76-39,950,669.78-15,718,992.28

Finding the Fourth Proportional to 28,949,257.76, 39,950,669.78 and 15,718,992.28

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Solution

The fourth proportional to 28,949,257.76, 39,950,669.78 and 15,718,992.28 is: 21,692,586.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,949,257.76 : 39,950,669.78 = 15,718,992.28 : x
  2. Step 2: Convert to fraction form
    28,949,257.76/39,950,669.78 = 15,718,992.28/x
  3. Step 3: Cross multiply
    28,949,257.76x = 39,950,669.78 × 15,718,992.28
  4. Step 4: Simplify right side
    28,949,257.76x = 627,984,269,852,649.25
  5. Step 5: Solve for x
    x = 627,984,269,852,649.25/28,949,257.76
  6. Step 6: Final answer
    x = 21,692,586.22

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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.