Home / 22,278,440-30,744,247.20-12,620,648

Finding the Fourth Proportional to 22,278,440, 30,744,247.20 and 12,620,648

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Solution

The fourth proportional to 22,278,440, 30,744,247.20 and 12,620,648 is: 17,416,494.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,278,440 : 30,744,247.20 = 12,620,648 : x
  2. Step 2: Convert to fraction form
    22,278,440/30,744,247.20 = 12,620,648/x
  3. Step 3: Cross multiply
    22,278,440x = 30,744,247.20 × 12,620,648
  4. Step 4: Simplify right side
    22,278,440x = 388,012,321,936,185.56
  5. Step 5: Solve for x
    x = 388,012,321,936,185.56/22,278,440
  6. Step 6: Final answer
    x = 17,416,494.24

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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.