Home / 20,687,876.57-28,548,214.54-11,395,246.59

Finding the Fourth Proportional to 20,687,876.57, 28,548,214.54 and 11,395,246.59

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Solution

The fourth proportional to 20,687,876.57, 28,548,214.54 and 11,395,246.59 is: 15,724,859.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,687,876.57 : 28,548,214.54 = 11,395,246.59 : x
  2. Step 2: Convert to fraction form
    20,687,876.57/28,548,214.54 = 11,395,246.59/x
  3. Step 3: Cross multiply
    20,687,876.57x = 28,548,214.54 × 11,395,246.59
  4. Step 4: Simplify right side
    20,687,876.57x = 325,313,944,359,035.31
  5. Step 5: Solve for x
    x = 325,313,944,359,035.31/20,687,876.57
  6. Step 6: Final answer
    x = 15,724,859.11

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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.