Home / 7,640,782.85-10,550,198.79-5,871,879.28

Finding the Fourth Proportional to 7,640,782.85, 10,550,198.79 and 5,871,879.28

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Solution

The fourth proportional to 7,640,782.85, 10,550,198.79 and 5,871,879.28 is: 8,107,741.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,640,782.85 : 10,550,198.79 = 5,871,879.28 : x
  2. Step 2: Convert to fraction form
    7,640,782.85/10,550,198.79 = 5,871,879.28/x
  3. Step 3: Cross multiply
    7,640,782.85x = 10,550,198.79 × 5,871,879.28
  4. Step 4: Simplify right side
    7,640,782.85x = 61,949,493,674,882.07
  5. Step 5: Solve for x
    x = 61,949,493,674,882.07/7,640,782.85
  6. Step 6: Final answer
    x = 8,107,741.69

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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.