Home / 21,580,515.80-29,780,759.52-11,790,749.28

Finding the Fourth Proportional to 21,580,515.80, 29,780,759.52 and 11,790,749.28

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Solution

The fourth proportional to 21,580,515.80, 29,780,759.52 and 11,790,749.28 is: 16,271,041.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,580,515.80 : 29,780,759.52 = 11,790,749.28 : x
  2. Step 2: Convert to fraction form
    21,580,515.80/29,780,759.52 = 11,790,749.28/x
  3. Step 3: Cross multiply
    21,580,515.80x = 29,780,759.52 × 11,790,749.28
  4. Step 4: Simplify right side
    21,580,515.80x = 351,137,468,868,293.12
  5. Step 5: Solve for x
    x = 351,137,468,868,293.12/21,580,515.80
  6. Step 6: Final answer
    x = 16,271,041.54

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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.