Home / 20,408,804.15-28,164,188.84-11,116,345.64

Finding the Fourth Proportional to 20,408,804.15, 28,164,188.84 and 11,116,345.64

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Solution

The fourth proportional to 20,408,804.15, 28,164,188.84 and 11,116,345.64 is: 15,340,578.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,408,804.15 : 28,164,188.84 = 11,116,345.64 : x
  2. Step 2: Convert to fraction form
    20,408,804.15/28,164,188.84 = 11,116,345.64/x
  3. Step 3: Cross multiply
    20,408,804.15x = 28,164,188.84 × 11,116,345.64
  4. Step 4: Simplify right side
    20,408,804.15x = 313,082,857,619,268
  5. Step 5: Solve for x
    x = 313,082,857,619,268/20,408,804.15
  6. Step 6: Final answer
    x = 15,340,578.28

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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.