Home / 20,626,738.78-28,463,233.16-11,925,472.18

Finding the Fourth Proportional to 20,626,738.78, 28,463,233.16 and 11,925,472.18

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Solution

The fourth proportional to 20,626,738.78, 28,463,233.16 and 11,925,472.18 is: 16,456,188.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,626,738.78 : 28,463,233.16 = 11,925,472.18 : x
  2. Step 2: Convert to fraction form
    20,626,738.78/28,463,233.16 = 11,925,472.18/x
  3. Step 3: Cross multiply
    20,626,738.78x = 28,463,233.16 × 11,925,472.18
  4. Step 4: Simplify right side
    20,626,738.78x = 339,437,495,202,433.50
  5. Step 5: Solve for x
    x = 339,437,495,202,433.50/20,626,738.78
  6. Step 6: Final answer
    x = 16,456,188.19

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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.