Home / 20,386,691.37-28,133,625.74-11,219,334.03

Finding the Fourth Proportional to 20,386,691.37, 28,133,625.74 and 11,219,334.03

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Solution

The fourth proportional to 20,386,691.37, 28,133,625.74 and 11,219,334.03 is: 15,482,676.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,386,691.37 : 28,133,625.74 = 11,219,334.03 : x
  2. Step 2: Convert to fraction form
    20,386,691.37/28,133,625.74 = 11,219,334.03/x
  3. Step 3: Cross multiply
    20,386,691.37x = 28,133,625.74 × 11,219,334.03
  4. Step 4: Simplify right side
    20,386,691.37x = 315,640,544,595,969.25
  5. Step 5: Solve for x
    x = 315,640,544,595,969.25/20,386,691.37
  6. Step 6: Final answer
    x = 15,482,676.36

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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.