Home / 20,501,446.87-28,292,265.03-11,209,027.74

Finding the Fourth Proportional to 20,501,446.87, 28,292,265.03 and 11,209,027.74

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Solution

The fourth proportional to 20,501,446.87, 28,292,265.03 and 11,209,027.74 is: 15,468,604.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,501,446.87 : 28,292,265.03 = 11,209,027.74 : x
  2. Step 2: Convert to fraction form
    20,501,446.87/28,292,265.03 = 11,209,027.74/x
  3. Step 3: Cross multiply
    20,501,446.87x = 28,292,265.03 × 11,209,027.74
  4. Step 4: Simplify right side
    20,501,446.87x = 317,128,783,407,240.62
  5. Step 5: Solve for x
    x = 317,128,783,407,240.62/20,501,446.87
  6. Step 6: Final answer
    x = 15,468,604.99

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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.