Home / 13,990,496.52-20,960,169-10,142,789.56

Finding the Fourth Proportional to 13,990,496.52, 20,960,169 and 10,142,789.56

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Solution

The fourth proportional to 13,990,496.52, 20,960,169 and 10,142,789.56 is: 15,195,642.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,990,496.52 : 20,960,169 = 10,142,789.56 : x
  2. Step 2: Convert to fraction form
    13,990,496.52/20,960,169 = 10,142,789.56/x
  3. Step 3: Cross multiply
    13,990,496.52x = 20,960,169 × 10,142,789.56
  4. Step 4: Simplify right side
    13,990,496.52x = 212,594,583,309,035.66
  5. Step 5: Solve for x
    x = 212,594,583,309,035.66/13,990,496.52
  6. Step 6: Final answer
    x = 15,195,642.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.