Home / 20,626,741.78-28,463,237.30-11,925,475.18

Finding the Fourth Proportional to 20,626,741.78, 28,463,237.30 and 11,925,475.18

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Solution

The fourth proportional to 20,626,741.78, 28,463,237.30 and 11,925,475.18 is: 16,456,192.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,626,741.78 : 28,463,237.30 = 11,925,475.18 : x
  2. Step 2: Convert to fraction form
    20,626,741.78/28,463,237.30 = 11,925,475.18/x
  3. Step 3: Cross multiply
    20,626,741.78x = 28,463,237.30 × 11,925,475.18
  4. Step 4: Simplify right side
    20,626,741.78x = 339,437,629,963,600.19
  5. Step 5: Solve for x
    x = 339,437,629,963,600.19/20,626,741.78
  6. Step 6: Final answer
    x = 16,456,192.33

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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.