Home / 28,469,987.28-39,288,603.74-15,417,260.51

Finding the Fourth Proportional to 28,469,987.28, 39,288,603.74 and 15,417,260.51

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Solution

The fourth proportional to 28,469,987.28, 39,288,603.74 and 15,417,260.51 is: 21,275,831.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,469,987.28 : 39,288,603.74 = 15,417,260.51 : x
  2. Step 2: Convert to fraction form
    28,469,987.28/39,288,603.74 = 15,417,260.51/x
  3. Step 3: Cross multiply
    28,469,987.28x = 39,288,603.74 × 15,417,260.51
  4. Step 4: Simplify right side
    28,469,987.28x = 605,722,638,660,211
  5. Step 5: Solve for x
    x = 605,722,638,660,211/28,469,987.28
  6. Step 6: Final answer
    x = 21,275,831.03

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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.