Home / 21,978,771.59-30,332,520.54-12,192,371.03

Finding the Fourth Proportional to 21,978,771.59, 30,332,520.54 and 12,192,371.03

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Solution

The fourth proportional to 21,978,771.59, 30,332,520.54 and 12,192,371.03 is: 16,826,479.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,978,771.59 : 30,332,520.54 = 12,192,371.03 : x
  2. Step 2: Convert to fraction form
    21,978,771.59/30,332,520.54 = 12,192,371.03/x
  3. Step 3: Cross multiply
    21,978,771.59x = 30,332,520.54 × 12,192,371.03
  4. Step 4: Simplify right side
    21,978,771.59x = 369,825,344,547,113.38
  5. Step 5: Solve for x
    x = 369,825,344,547,113.38/21,978,771.59
  6. Step 6: Final answer
    x = 16,826,479.27

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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.