Home / 20,896,171.47-28,835,134.65-11,727,042.75

Finding the Fourth Proportional to 20,896,171.47, 28,835,134.65 and 11,727,042.75

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Solution

The fourth proportional to 20,896,171.47, 28,835,134.65 and 11,727,042.75 is: 16,182,431.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,896,171.47 : 28,835,134.65 = 11,727,042.75 : x
  2. Step 2: Convert to fraction form
    20,896,171.47/28,835,134.65 = 11,727,042.75/x
  3. Step 3: Cross multiply
    20,896,171.47x = 28,835,134.65 × 11,727,042.75
  4. Step 4: Simplify right side
    20,896,171.47x = 338,150,856,742,556.25
  5. Step 5: Solve for x
    x = 338,150,856,742,556.25/20,896,171.47
  6. Step 6: Final answer
    x = 16,182,431.18

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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.