Home / 5,101,708.51-7,040,357.78-2,809,869.20

Finding the Fourth Proportional to 5,101,708.51, 7,040,357.78 and 2,809,869.20

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Solution

The fourth proportional to 5,101,708.51, 7,040,357.78 and 2,809,869.20 is: 3,877,619.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,101,708.51 : 7,040,357.78 = 2,809,869.20 : x
  2. Step 2: Convert to fraction form
    5,101,708.51/7,040,357.78 = 2,809,869.20/x
  3. Step 3: Cross multiply
    5,101,708.51x = 7,040,357.78 × 2,809,869.20
  4. Step 4: Simplify right side
    5,101,708.51x = 19,782,484,433,751.24
  5. Step 5: Solve for x
    x = 19,782,484,433,751.24/5,101,708.51
  6. Step 6: Final answer
    x = 3,877,619.51

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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.