Home / 20,626,731.75-28,463,223.48-11,925,465.21

Finding the Fourth Proportional to 20,626,731.75, 28,463,223.48 and 11,925,465.21

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Solution

The fourth proportional to 20,626,731.75, 28,463,223.48 and 11,925,465.21 is: 16,456,178.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,626,731.75 : 28,463,223.48 = 11,925,465.21 : x
  2. Step 2: Convert to fraction form
    20,626,731.75/28,463,223.48 = 11,925,465.21/x
  3. Step 3: Cross multiply
    20,626,731.75x = 28,463,223.48 × 11,925,465.21
  4. Step 4: Simplify right side
    20,626,731.75x = 339,437,181,375,195.19
  5. Step 5: Solve for x
    x = 339,437,181,375,195.19/20,626,731.75
  6. Step 6: Final answer
    x = 16,456,178.59

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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.