Home / 1,181,795,804.92-1,631,080,725.24-687,045,491.56

Finding the Fourth Proportional to 1,181,795,804.92, 1,631,080,725.24 and 687,045,491.56

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Solution

The fourth proportional to 1,181,795,804.92, 1,631,080,725.24 and 687,045,491.56 is: 948,240,511.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,181,795,804.92 : 1,631,080,725.24 = 687,045,491.56 : x
  2. Step 2: Convert to fraction form
    1,181,795,804.92/1,631,080,725.24 = 687,045,491.56/x
  3. Step 3: Cross multiply
    1,181,795,804.92x = 1,631,080,725.24 × 687,045,491.56
  4. Step 4: Simplify right side
    1,181,795,804.92x = 1,120,626,658,646,557,056
  5. Step 5: Solve for x
    x = 1,120,626,658,646,557,056/1,181,795,804.92
  6. Step 6: Final answer
    x = 948,240,511.59

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Double scale
Find fourth proportional to 1,181,795,805.92, 1,631,080,726.62 and 687,045,492.56
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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.