Home / 21,969,964.90-30,320,348.16-12,183,478.84

Finding the Fourth Proportional to 21,969,964.90, 30,320,348.16 and 12,183,478.84

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Solution

The fourth proportional to 21,969,964.90, 30,320,348.16 and 12,183,478.84 is: 16,814,197.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,969,964.90 : 30,320,348.16 = 12,183,478.84 : x
  2. Step 2: Convert to fraction form
    21,969,964.90/30,320,348.16 = 12,183,478.84/x
  3. Step 3: Cross multiply
    21,969,964.90x = 30,320,348.16 × 12,183,478.84
  4. Step 4: Simplify right side
    21,969,964.90x = 369,407,320,228,792.94
  5. Step 5: Solve for x
    x = 369,407,320,228,792.94/21,969,964.90
  6. Step 6: Final answer
    x = 16,814,197.11

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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.