Home / 19,875,775.72-27,428,405.49-11,173,987.03

Finding the Fourth Proportional to 19,875,775.72, 27,428,405.49 and 11,173,987.03

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Solution

The fourth proportional to 19,875,775.72, 27,428,405.49 and 11,173,987.03 is: 15,420,009.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,875,775.72 : 27,428,405.49 = 11,173,987.03 : x
  2. Step 2: Convert to fraction form
    19,875,775.72/27,428,405.49 = 11,173,987.03/x
  3. Step 3: Cross multiply
    19,875,775.72x = 27,428,405.49 × 11,173,987.03
  4. Step 4: Simplify right side
    19,875,775.72x = 306,484,647,198,840.75
  5. Step 5: Solve for x
    x = 306,484,647,198,840.75/19,875,775.72
  6. Step 6: Final answer
    x = 15,420,009.34

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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.