Home / 144,489,703.20-199,395,920.78-78,410,202.11

Finding the Fourth Proportional to 144,489,703.20, 199,395,920.78 and 78,410,202.11

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Solution

The fourth proportional to 144,489,703.20, 199,395,920.78 and 78,410,202.11 is: 108,206,149.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,489,703.20 : 199,395,920.78 = 78,410,202.11 : x
  2. Step 2: Convert to fraction form
    144,489,703.20/199,395,920.78 = 78,410,202.11/x
  3. Step 3: Cross multiply
    144,489,703.20x = 199,395,920.78 × 78,410,202.11
  4. Step 4: Simplify right side
    144,489,703.20x = 15,634,674,446,880,320
  5. Step 5: Solve for x
    x = 15,634,674,446,880,320/144,489,703.20
  6. Step 6: Final answer
    x = 108,206,149.65

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.