Home / 1,188,283,998.32-1,639,749,628.44-659,606,343.92

Finding the Fourth Proportional to 1,188,283,998.32, 1,639,749,628.44 and 659,606,343.92

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Solution

The fourth proportional to 1,188,283,998.32, 1,639,749,628.44 and 659,606,343.92 is: 910,211,076.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,283,998.32 : 1,639,749,628.44 = 659,606,343.92 : x
  2. Step 2: Convert to fraction form
    1,188,283,998.32/1,639,749,628.44 = 659,606,343.92/x
  3. Step 3: Cross multiply
    1,188,283,998.32x = 1,639,749,628.44 × 659,606,343.92
  4. Step 4: Simplify right side
    1,188,283,998.32x = 1,081,589,257,359,486,848
  5. Step 5: Solve for x
    x = 1,081,589,257,359,486,848/1,188,283,998.32
  6. Step 6: Final answer
    x = 910,211,076.55

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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.