Home / 19,798,396.77-27,280,823.45-15,915,334.53

Finding the Fourth Proportional to 19,798,396.77, 27,280,823.45 and 15,915,334.53

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Solution

The fourth proportional to 19,798,396.77, 27,280,823.45 and 15,915,334.53 is: 21,930,231.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,798,396.77 : 27,280,823.45 = 15,915,334.53 : x
  2. Step 2: Convert to fraction form
    19,798,396.77/27,280,823.45 = 15,915,334.53/x
  3. Step 3: Cross multiply
    19,798,396.77x = 27,280,823.45 × 15,915,334.53
  4. Step 4: Simplify right side
    19,798,396.77x = 434,183,431,381,042.06
  5. Step 5: Solve for x
    x = 434,183,431,381,042.06/19,798,396.77
  6. Step 6: Final answer
    x = 21,930,231.85

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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.