Home / 20,729,445.72-28,606,734.48-11,437,015.29

Finding the Fourth Proportional to 20,729,445.72, 28,606,734.48 and 11,437,015.29

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Solution

The fourth proportional to 20,729,445.72, 28,606,734.48 and 11,437,015.29 is: 15,783,135.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,729,445.72 : 28,606,734.48 = 11,437,015.29 : x
  2. Step 2: Convert to fraction form
    20,729,445.72/28,606,734.48 = 11,437,015.29/x
  3. Step 3: Cross multiply
    20,729,445.72x = 28,606,734.48 × 11,437,015.29
  4. Step 4: Simplify right side
    20,729,445.72x = 327,175,659,644,730.19
  5. Step 5: Solve for x
    x = 327,175,659,644,730.19/20,729,445.72
  6. Step 6: Final answer
    x = 15,783,135.93

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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.