Home / 21,770,711.19-30,031,085.88-13,607,777.43

Finding the Fourth Proportional to 21,770,711.19, 30,031,085.88 and 13,607,777.43

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Solution

The fourth proportional to 21,770,711.19, 30,031,085.88 and 13,607,777.43 is: 18,770,922.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,770,711.19 : 30,031,085.88 = 13,607,777.43 : x
  2. Step 2: Convert to fraction form
    21,770,711.19/30,031,085.88 = 13,607,777.43/x
  3. Step 3: Cross multiply
    21,770,711.19x = 30,031,085.88 × 13,607,777.43
  4. Step 4: Simplify right side
    21,770,711.19x = 408,656,332,636,255.69
  5. Step 5: Solve for x
    x = 408,656,332,636,255.69/21,770,711.19
  6. Step 6: Final answer
    x = 18,770,922.51

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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.