Home / 20,969,289.19-28,936,688.29-11,677,338.55

Finding the Fourth Proportional to 20,969,289.19, 28,936,688.29 and 11,677,338.55

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Solution

The fourth proportional to 20,969,289.19, 28,936,688.29 and 11,677,338.55 is: 16,114,208.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,969,289.19 : 28,936,688.29 = 11,677,338.55 : x
  2. Step 2: Convert to fraction form
    20,969,289.19/28,936,688.29 = 11,677,338.55/x
  3. Step 3: Cross multiply
    20,969,289.19x = 28,936,688.29 × 11,677,338.55
  4. Step 4: Simplify right side
    20,969,289.19x = 337,903,505,678,150.56
  5. Step 5: Solve for x
    x = 337,903,505,678,150.56/20,969,289.19
  6. Step 6: Final answer
    x = 16,114,208.86

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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.