Home / 84,113,939.14-126,169,893.24-21,859,738.90

Finding the Fourth Proportional to 84,113,939.14, 126,169,893.24 and 21,859,738.90

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Solution

The fourth proportional to 84,113,939.14, 126,169,893.24 and 21,859,738.90 is: 32,789,344.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,113,939.14 : 126,169,893.24 = 21,859,738.90 : x
  2. Step 2: Convert to fraction form
    84,113,939.14/126,169,893.24 = 21,859,738.90/x
  3. Step 3: Cross multiply
    84,113,939.14x = 126,169,893.24 × 21,859,738.90
  4. Step 4: Simplify right side
    84,113,939.14x = 2,758,040,923,267,274.50
  5. Step 5: Solve for x
    x = 2,758,040,923,267,274.50/84,113,939.14
  6. Step 6: Final answer
    x = 32,789,344.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.