Home / 20,626,843.86-28,463,378.13-11,925,577.22

Finding the Fourth Proportional to 20,626,843.86, 28,463,378.13 and 11,925,577.22

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Solution

The fourth proportional to 20,626,843.86, 28,463,378.13 and 11,925,577.22 is: 16,456,333.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,626,843.86 : 28,463,378.13 = 11,925,577.22 : x
  2. Step 2: Convert to fraction form
    20,626,843.86/28,463,378.13 = 11,925,577.22/x
  3. Step 3: Cross multiply
    20,626,843.86x = 28,463,378.13 × 11,925,577.22
  4. Step 4: Simplify right side
    20,626,843.86x = 339,442,213,689,057.31
  5. Step 5: Solve for x
    x = 339,442,213,689,057.31/20,626,843.86
  6. Step 6: Final answer
    x = 16,456,333.12

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1.5x scale

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.