Home / 1,211,647,766.25-1,813,743,995.58-790,562,437.70

Finding the Fourth Proportional to 1,211,647,766.25, 1,813,743,995.58 and 790,562,437.70

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Solution

The fourth proportional to 1,211,647,766.25, 1,813,743,995.58 and 790,562,437.70 is: 1,183,411,478.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,647,766.25 : 1,813,743,995.58 = 790,562,437.70 : x
  2. Step 2: Convert to fraction form
    1,211,647,766.25/1,813,743,995.58 = 790,562,437.70/x
  3. Step 3: Cross multiply
    1,211,647,766.25x = 1,813,743,995.58 × 790,562,437.70
  4. Step 4: Simplify right side
    1,211,647,766.25x = 1,433,877,874,500,394,240
  5. Step 5: Solve for x
    x = 1,433,877,874,500,394,240/1,211,647,766.25
  6. Step 6: Final answer
    x = 1,183,411,478.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.