Home / 5,120,055.62-7,065,655.22-2,828,216.31

Finding the Fourth Proportional to 5,120,055.62, 7,065,655.22 and 2,828,216.31

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Solution

The fourth proportional to 5,120,055.62, 7,065,655.22 and 2,828,216.31 is: 3,902,926.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120,055.62 : 7,065,655.22 = 2,828,216.31 : x
  2. Step 2: Convert to fraction form
    5,120,055.62/7,065,655.22 = 2,828,216.31/x
  3. Step 3: Cross multiply
    5,120,055.62x = 7,065,655.22 × 2,828,216.31
  4. Step 4: Simplify right side
    5,120,055.62x = 19,983,201,298,712.36
  5. Step 5: Solve for x
    x = 19,983,201,298,712.36/5,120,055.62
  6. Step 6: Final answer
    x = 3,902,926.61

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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.