Home / 20,899,831.62-28,842,124.17-11,481,019.71

Finding the Fourth Proportional to 20,899,831.62, 28,842,124.17 and 11,481,019.71

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Solution

The fourth proportional to 20,899,831.62, 28,842,124.17 and 11,481,019.71 is: 15,844,003.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,899,831.62 : 28,842,124.17 = 11,481,019.71 : x
  2. Step 2: Convert to fraction form
    20,899,831.62/28,842,124.17 = 11,481,019.71/x
  3. Step 3: Cross multiply
    20,899,831.62x = 28,842,124.17 × 11,481,019.71
  4. Step 4: Simplify right side
    20,899,831.62x = 331,136,996,074,037.44
  5. Step 5: Solve for x
    x = 331,136,996,074,037.44/20,899,831.62
  6. Step 6: Final answer
    x = 15,844,003.06

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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.