Home / 5,112,929.88-7,055,990.76-2,821,238.16

Finding the Fourth Proportional to 5,112,929.88, 7,055,990.76 and 2,821,238.16

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Solution

The fourth proportional to 5,112,929.88, 7,055,990.76 and 2,821,238.16 is: 3,893,390.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,112,929.88 : 7,055,990.76 = 2,821,238.16 : x
  2. Step 2: Convert to fraction form
    5,112,929.88/7,055,990.76 = 2,821,238.16/x
  3. Step 3: Cross multiply
    5,112,929.88x = 7,055,990.76 × 2,821,238.16
  4. Step 4: Simplify right side
    5,112,929.88x = 19,906,630,388,719.40
  5. Step 5: Solve for x
    x = 19,906,630,388,719.40/5,112,929.88
  6. Step 6: Final answer
    x = 3,893,390.06

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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.