Home / 21,580,516.55-29,780,760.56-11,790,750.03

Finding the Fourth Proportional to 21,580,516.55, 29,780,760.56 and 11,790,750.03

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Solution

The fourth proportional to 21,580,516.55, 29,780,760.56 and 11,790,750.03 is: 16,271,042.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,580,516.55 : 29,780,760.56 = 11,790,750.03 : x
  2. Step 2: Convert to fraction form
    21,580,516.55/29,780,760.56 = 11,790,750.03/x
  3. Step 3: Cross multiply
    21,580,516.55x = 29,780,760.56 × 11,790,750.03
  4. Step 4: Simplify right side
    21,580,516.55x = 351,137,503,407,289.06
  5. Step 5: Solve for x
    x = 351,137,503,407,289.06/21,580,516.55
  6. Step 6: Final answer
    x = 16,271,042.57

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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.