Home / 21,810,872.12-30,098,852.64-12,021,321.47

Finding the Fourth Proportional to 21,810,872.12, 30,098,852.64 and 12,021,321.47

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Solution

The fourth proportional to 21,810,872.12, 30,098,852.64 and 12,021,321.47 is: 16,589,340.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,810,872.12 : 30,098,852.64 = 12,021,321.47 : x
  2. Step 2: Convert to fraction form
    21,810,872.12/30,098,852.64 = 12,021,321.47/x
  3. Step 3: Cross multiply
    21,810,872.12x = 30,098,852.64 × 12,021,321.47
  4. Step 4: Simplify right side
    21,810,872.12x = 361,827,983,313,103.94
  5. Step 5: Solve for x
    x = 361,827,983,313,103.94/21,810,872.12
  6. Step 6: Final answer
    x = 16,589,340.46

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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.