Home / 142,192,383.12-196,169,933.88-82,643,784.72

Finding the Fourth Proportional to 142,192,383.12, 196,169,933.88 and 82,643,784.72

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Solution

The fourth proportional to 142,192,383.12, 196,169,933.88 and 82,643,784.72 is: 114,016,133.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,192,383.12 : 196,169,933.88 = 82,643,784.72 : x
  2. Step 2: Convert to fraction form
    142,192,383.12/196,169,933.88 = 82,643,784.72/x
  3. Step 3: Cross multiply
    142,192,383.12x = 196,169,933.88 × 82,643,784.72
  4. Step 4: Simplify right side
    142,192,383.12x = 16,212,225,784,115,354
  5. Step 5: Solve for x
    x = 16,212,225,784,115,354/142,192,383.12
  6. Step 6: Final answer
    x = 114,016,133.83

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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.