Home / 13,565,249.36-18,720,039.72-7,454,071.52

Finding the Fourth Proportional to 13,565,249.36, 18,720,039.72 and 7,454,071.52

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Solution

The fourth proportional to 13,565,249.36, 18,720,039.72 and 7,454,071.52 is: 10,286,616.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,565,249.36 : 18,720,039.72 = 7,454,071.52 : x
  2. Step 2: Convert to fraction form
    13,565,249.36/18,720,039.72 = 7,454,071.52/x
  3. Step 3: Cross multiply
    13,565,249.36x = 18,720,039.72 × 7,454,071.52
  4. Step 4: Simplify right side
    13,565,249.36x = 139,540,514,930,120.75
  5. Step 5: Solve for x
    x = 139,540,514,930,120.75/13,565,249.36
  6. Step 6: Final answer
    x = 10,286,616.28

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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.