Home / 20,784,015.06-28,681,492.05-11,491,227.96

Finding the Fourth Proportional to 20,784,015.06, 28,681,492.05 and 11,491,227.96

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Solution

The fourth proportional to 20,784,015.06, 28,681,492.05 and 11,491,227.96 is: 15,857,646.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,784,015.06 : 28,681,492.05 = 11,491,227.96 : x
  2. Step 2: Convert to fraction form
    20,784,015.06/28,681,492.05 = 11,491,227.96/x
  3. Step 3: Cross multiply
    20,784,015.06x = 28,681,492.05 × 11,491,227.96
  4. Step 4: Simplify right side
    20,784,015.06x = 329,585,563,379,477.75
  5. Step 5: Solve for x
    x = 329,585,563,379,477.75/20,784,015.06
  6. Step 6: Final answer
    x = 15,857,646.49

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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.