Home / 144,490,422.06-199,396,911.33-78,410,920.95

Finding the Fourth Proportional to 144,490,422.06, 199,396,911.33 and 78,410,920.95

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Solution

The fourth proportional to 144,490,422.06, 199,396,911.33 and 78,410,920.95 is: 108,207,140.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,490,422.06 : 199,396,911.33 = 78,410,920.95 : x
  2. Step 2: Convert to fraction form
    144,490,422.06/199,396,911.33 = 78,410,920.95/x
  3. Step 3: Cross multiply
    144,490,422.06x = 199,396,911.33 × 78,410,920.95
  4. Step 4: Simplify right side
    144,490,422.06x = 15,634,895,451,970,790
  5. Step 5: Solve for x
    x = 15,634,895,451,970,790/144,490,422.06
  6. Step 6: Final answer
    x = 108,207,140.85

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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.