Home / 9,120,907.91-12,586,299.08-5,200,115.81

Finding the Fourth Proportional to 9,120,907.91, 12,586,299.08 and 5,200,115.81

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Solution

The fourth proportional to 9,120,907.91, 12,586,299.08 and 5,200,115.81 is: 7,175,844.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,120,907.91 : 12,586,299.08 = 5,200,115.81 : x
  2. Step 2: Convert to fraction form
    9,120,907.91/12,586,299.08 = 5,200,115.81/x
  3. Step 3: Cross multiply
    9,120,907.91x = 12,586,299.08 × 5,200,115.81
  4. Step 4: Simplify right side
    9,120,907.91x = 65,450,212,809,295.87
  5. Step 5: Solve for x
    x = 65,450,212,809,295.87/9,120,907.91
  6. Step 6: Final answer
    x = 7,175,844.06

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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.