Home / 142,192,302.50-196,169,822.78-82,643,704.22

Finding the Fourth Proportional to 142,192,302.50, 196,169,822.78 and 82,643,704.22

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Solution

The fourth proportional to 142,192,302.50, 196,169,822.78 and 82,643,704.22 is: 114,016,022.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,192,302.50 : 196,169,822.78 = 82,643,704.22 : x
  2. Step 2: Convert to fraction form
    142,192,302.50/196,169,822.78 = 82,643,704.22/x
  3. Step 3: Cross multiply
    142,192,302.50x = 196,169,822.78 × 82,643,704.22
  4. Step 4: Simplify right side
    142,192,302.50x = 16,212,200,810,720,138
  5. Step 5: Solve for x
    x = 16,212,200,810,720,138/142,192,302.50
  6. Step 6: Final answer
    x = 114,016,022.85

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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.