Home / 20,177,020.23-27,848,085.05-12,636,638.24

Finding the Fourth Proportional to 20,177,020.23, 27,848,085.05 and 12,636,638.24

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Solution

The fourth proportional to 20,177,020.23, 27,848,085.05 and 12,636,638.24 is: 17,440,938.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,177,020.23 : 27,848,085.05 = 12,636,638.24 : x
  2. Step 2: Convert to fraction form
    20,177,020.23/27,848,085.05 = 12,636,638.24/x
  3. Step 3: Cross multiply
    20,177,020.23x = 27,848,085.05 × 12,636,638.24
  4. Step 4: Simplify right side
    20,177,020.23x = 351,906,176,338,880.06
  5. Step 5: Solve for x
    x = 351,906,176,338,880.06/20,177,020.23
  6. Step 6: Final answer
    x = 17,440,938.86

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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.