Home / 21,580,441.74-29,780,662.05-11,790,675.90

Finding the Fourth Proportional to 21,580,441.74, 29,780,662.05 and 11,790,675.90

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Solution

The fourth proportional to 21,580,441.74, 29,780,662.05 and 11,790,675.90 is: 16,270,942.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,580,441.74 : 29,780,662.05 = 11,790,675.90 : x
  2. Step 2: Convert to fraction form
    21,580,441.74/29,780,662.05 = 11,790,675.90/x
  3. Step 3: Cross multiply
    21,580,441.74x = 29,780,662.05 × 11,790,675.90
  4. Step 4: Simplify right side
    21,580,441.74x = 351,134,134,318,979.62
  5. Step 5: Solve for x
    x = 351,134,134,318,979.62/21,580,441.74
  6. Step 6: Final answer
    x = 16,270,942.85

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1.5x scale

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.