Home / 21,481,499.46-29,642,235.21-12,186,107.94

Finding the Fourth Proportional to 21,481,499.46, 29,642,235.21 and 12,186,107.94

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Solution

The fourth proportional to 21,481,499.46, 29,642,235.21 and 12,186,107.94 is: 16,815,561.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,481,499.46 : 29,642,235.21 = 12,186,107.94 : x
  2. Step 2: Convert to fraction form
    21,481,499.46/29,642,235.21 = 12,186,107.94/x
  3. Step 3: Cross multiply
    21,481,499.46x = 29,642,235.21 × 12,186,107.94
  4. Step 4: Simplify right side
    21,481,499.46x = 361,223,477,851,928.56
  5. Step 5: Solve for x
    x = 361,223,477,851,928.56/21,481,499.46
  6. Step 6: Final answer
    x = 16,815,561.62

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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.