Home / 20,517,320.62-28,313,799.42-11,224,722.34

Finding the Fourth Proportional to 20,517,320.62, 28,313,799.42 and 11,224,722.34

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Solution

The fourth proportional to 20,517,320.62, 28,313,799.42 and 11,224,722.34 is: 15,490,060.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,517,320.62 : 28,313,799.42 = 11,224,722.34 : x
  2. Step 2: Convert to fraction form
    20,517,320.62/28,313,799.42 = 11,224,722.34/x
  3. Step 3: Cross multiply
    20,517,320.62x = 28,313,799.42 × 11,224,722.34
  4. Step 4: Simplify right side
    20,517,320.62x = 317,814,536,879,953.06
  5. Step 5: Solve for x
    x = 317,814,536,879,953.06/20,517,320.62
  6. Step 6: Final answer
    x = 15,490,060.46

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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.