Home / 5,055,138.69-6,974,388.03-2,878,141.51

Finding the Fourth Proportional to 5,055,138.69, 6,974,388.03 and 2,878,141.51

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Solution

The fourth proportional to 5,055,138.69, 6,974,388.03 and 2,878,141.51 is: 3,970,865.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,055,138.69 : 6,974,388.03 = 2,878,141.51 : x
  2. Step 2: Convert to fraction form
    5,055,138.69/6,974,388.03 = 2,878,141.51/x
  3. Step 3: Cross multiply
    5,055,138.69x = 6,974,388.03 × 2,878,141.51
  4. Step 4: Simplify right side
    5,055,138.69x = 20,073,275,695,990.12
  5. Step 5: Solve for x
    x = 20,073,275,695,990.12/5,055,138.69
  6. Step 6: Final answer
    x = 3,970,865.48

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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.