Home / 21,986,503.88-30,345,012.60-12,200,100.90

Finding the Fourth Proportional to 21,986,503.88, 30,345,012.60 and 12,200,100.90

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Solution

The fourth proportional to 21,986,503.88, 30,345,012.60 and 12,200,100.90 is: 16,838,157.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,986,503.88 : 30,345,012.60 = 12,200,100.90 : x
  2. Step 2: Convert to fraction form
    21,986,503.88/30,345,012.60 = 12,200,100.90/x
  3. Step 3: Cross multiply
    21,986,503.88x = 30,345,012.60 × 12,200,100.90
  4. Step 4: Simplify right side
    21,986,503.88x = 370,212,215,531,771.38
  5. Step 5: Solve for x
    x = 370,212,215,531,771.38/21,986,503.88
  6. Step 6: Final answer
    x = 16,838,157.51

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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.