Home / 9,991,512.78-13,786,820.11-5,580,694.90

Finding the Fourth Proportional to 9,991,512.78, 13,786,820.11 and 5,580,694.90

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Solution

The fourth proportional to 9,991,512.78, 13,786,820.11 and 5,580,694.90 is: 7,700,539.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,991,512.78 : 13,786,820.11 = 5,580,694.90 : x
  2. Step 2: Convert to fraction form
    9,991,512.78/13,786,820.11 = 5,580,694.90/x
  3. Step 3: Cross multiply
    9,991,512.78x = 13,786,820.11 × 5,580,694.90
  4. Step 4: Simplify right side
    9,991,512.78x = 76,940,036,675,094.44
  5. Step 5: Solve for x
    x = 76,940,036,675,094.44/9,991,512.78
  6. Step 6: Final answer
    x = 7,700,539.28

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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.