Home / 1,099,420,013.05-1,517,188,928.51-818,419,075.27

Finding the Fourth Proportional to 1,099,420,013.05, 1,517,188,928.51 and 818,419,075.27

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Solution

The fourth proportional to 1,099,420,013.05, 1,517,188,928.51 and 818,419,075.27 is: 1,129,410,366.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,099,420,013.05 : 1,517,188,928.51 = 818,419,075.27 : x
  2. Step 2: Convert to fraction form
    1,099,420,013.05/1,517,188,928.51 = 818,419,075.27/x
  3. Step 3: Cross multiply
    1,099,420,013.05x = 1,517,188,928.51 × 818,419,075.27
  4. Step 4: Simplify right side
    1,099,420,013.05x = 1,241,696,359,879,289,600
  5. Step 5: Solve for x
    x = 1,241,696,359,879,289,600/1,099,420,013.05
  6. Step 6: Final answer
    x = 1,129,410,366.51

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Double scale
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1.5x scale

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.