Home / 9,991,113.18-13,786,966.58-5,640,629.52

Finding the Fourth Proportional to 9,991,113.18, 13,786,966.58 and 5,640,629.52

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Solution

The fourth proportional to 9,991,113.18, 13,786,966.58 and 5,640,629.52 is: 7,783,634.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,991,113.18 : 13,786,966.58 = 5,640,629.52 : x
  2. Step 2: Convert to fraction form
    9,991,113.18/13,786,966.58 = 5,640,629.52/x
  3. Step 3: Cross multiply
    9,991,113.18x = 13,786,966.58 × 5,640,629.52
  4. Step 4: Simplify right side
    9,991,113.18x = 77,767,170,682,401.44
  5. Step 5: Solve for x
    x = 77,767,170,682,401.44/9,991,113.18
  6. Step 6: Final answer
    x = 7,783,634.24

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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.