Home / 20,663,656.25-28,516,107.96-11,372,296.10

Finding the Fourth Proportional to 20,663,656.25, 28,516,107.96 and 11,372,296.10

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Solution

The fourth proportional to 20,663,656.25, 28,516,107.96 and 11,372,296.10 is: 15,693,912.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,663,656.25 : 28,516,107.96 = 11,372,296.10 : x
  2. Step 2: Convert to fraction form
    20,663,656.25/28,516,107.96 = 11,372,296.10/x
  3. Step 3: Cross multiply
    20,663,656.25x = 28,516,107.96 × 11,372,296.10
  4. Step 4: Simplify right side
    20,663,656.25x = 324,293,623,198,106.44
  5. Step 5: Solve for x
    x = 324,293,623,198,106.44/20,663,656.25
  6. Step 6: Final answer
    x = 15,693,912.99

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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.