Home / 20,775,616.62-28,670,441.04-11,356,599.92

Finding the Fourth Proportional to 20,775,616.62, 28,670,441.04 and 11,356,599.92

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Solution

The fourth proportional to 20,775,616.62, 28,670,441.04 and 11,356,599.92 is: 15,672,157.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,775,616.62 : 28,670,441.04 = 11,356,599.92 : x
  2. Step 2: Convert to fraction form
    20,775,616.62/28,670,441.04 = 11,356,599.92/x
  3. Step 3: Cross multiply
    20,775,616.62x = 28,670,441.04 × 11,356,599.92
  4. Step 4: Simplify right side
    20,775,616.62x = 325,598,728,277,876.50
  5. Step 5: Solve for x
    x = 325,598,728,277,876.50/20,775,616.62
  6. Step 6: Final answer
    x = 15,672,157.14

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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.