Home / 11,855,147.78-16,360,120.60-6,422,639.78

Finding the Fourth Proportional to 11,855,147.78, 16,360,120.60 and 6,422,639.78

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Solution

The fourth proportional to 11,855,147.78, 16,360,120.60 and 6,422,639.78 is: 8,863,251.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,855,147.78 : 16,360,120.60 = 6,422,639.78 : x
  2. Step 2: Convert to fraction form
    11,855,147.78/16,360,120.60 = 6,422,639.78/x
  3. Step 3: Cross multiply
    11,855,147.78x = 16,360,120.60 × 6,422,639.78
  4. Step 4: Simplify right side
    11,855,147.78x = 105,075,161,371,157.47
  5. Step 5: Solve for x
    x = 105,075,161,371,157.47/11,855,147.78
  6. Step 6: Final answer
    x = 8,863,251.92

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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.