Home / 21,920,450.33-30,249,474.89-12,131,307.11

Finding the Fourth Proportional to 21,920,450.33, 30,249,474.89 and 12,131,307.11

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Solution

The fourth proportional to 21,920,450.33, 30,249,474.89 and 12,131,307.11 is: 16,740,790.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,920,450.33 : 30,249,474.89 = 12,131,307.11 : x
  2. Step 2: Convert to fraction form
    21,920,450.33/30,249,474.89 = 12,131,307.11/x
  3. Step 3: Cross multiply
    21,920,450.33x = 30,249,474.89 × 12,131,307.11
  4. Step 4: Simplify right side
    21,920,450.33x = 366,965,669,594,919.56
  5. Step 5: Solve for x
    x = 366,965,669,594,919.56/21,920,450.33
  6. Step 6: Final answer
    x = 16,740,790.64

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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.