Home / 67,143,780.97-100,715,665.95-18,621,634.25

Finding the Fourth Proportional to 67,143,780.97, 100,715,665.95 and 18,621,634.25

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Solution

The fourth proportional to 67,143,780.97, 100,715,665.95 and 18,621,634.25 is: 27,932,449.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,143,780.97 : 100,715,665.95 = 18,621,634.25 : x
  2. Step 2: Convert to fraction form
    67,143,780.97/100,715,665.95 = 18,621,634.25/x
  3. Step 3: Cross multiply
    67,143,780.97x = 100,715,665.95 × 18,621,634.25
  4. Step 4: Simplify right side
    67,143,780.97x = 1,875,490,294,817,868.25
  5. Step 5: Solve for x
    x = 1,875,490,294,817,868.25/67,143,780.97
  6. Step 6: Final answer
    x = 27,932,449.85

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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.