Home / 20,307,822.39-28,024,631.37-11,015,369.28

Finding the Fourth Proportional to 20,307,822.39, 28,024,631.37 and 11,015,369.28

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Solution

The fourth proportional to 20,307,822.39, 28,024,631.37 and 11,015,369.28 is: 15,201,120.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,307,822.39 : 28,024,631.37 = 11,015,369.28 : x
  2. Step 2: Convert to fraction form
    20,307,822.39/28,024,631.37 = 11,015,369.28/x
  3. Step 3: Cross multiply
    20,307,822.39x = 28,024,631.37 × 11,015,369.28
  4. Step 4: Simplify right side
    20,307,822.39x = 308,701,663,476,422.31
  5. Step 5: Solve for x
    x = 308,701,663,476,422.31/20,307,822.39
  6. Step 6: Final answer
    x = 15,201,120.91

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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.