Home / 1,283,240,550.21-1,770,826,140.36-726,311,639.85

Finding the Fourth Proportional to 1,283,240,550.21, 1,770,826,140.36 and 726,311,639.85

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Solution

The fourth proportional to 1,283,240,550.21, 1,770,826,140.36 and 726,311,639.85 is: 1,002,284,129.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,283,240,550.21 : 1,770,826,140.36 = 726,311,639.85 : x
  2. Step 2: Convert to fraction form
    1,283,240,550.21/1,770,826,140.36 = 726,311,639.85/x
  3. Step 3: Cross multiply
    1,283,240,550.21x = 1,770,826,140.36 × 726,311,639.85
  4. Step 4: Simplify right side
    1,283,240,550.21x = 1,286,171,637,894,117,888
  5. Step 5: Solve for x
    x = 1,286,171,637,894,117,888/1,283,240,550.21
  6. Step 6: Final answer
    x = 1,002,284,129.57

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Double scale
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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.