Home / 1,181,795,833.92-1,631,080,765.28-687,045,520.56

Finding the Fourth Proportional to 1,181,795,833.92, 1,631,080,765.28 and 687,045,520.56

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Solution

The fourth proportional to 1,181,795,833.92, 1,631,080,765.28 and 687,045,520.56 is: 948,240,551.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,181,795,833.92 : 1,631,080,765.28 = 687,045,520.56 : x
  2. Step 2: Convert to fraction form
    1,181,795,833.92/1,631,080,765.28 = 687,045,520.56/x
  3. Step 3: Cross multiply
    1,181,795,833.92x = 1,631,080,765.28 × 687,045,520.56
  4. Step 4: Simplify right side
    1,181,795,833.92x = 1,120,626,733,457,200,640
  5. Step 5: Solve for x
    x = 1,120,626,733,457,200,640/1,181,795,833.92
  6. Step 6: Final answer
    x = 948,240,551.62

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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.