Home / 882,961,947.96-1,218,525,086.70-491,821,268.28

Finding the Fourth Proportional to 882,961,947.96, 1,218,525,086.70 and 491,821,268.28

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Solution

The fourth proportional to 882,961,947.96, 1,218,525,086.70 and 491,821,268.28 is: 678,734,293.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    882,961,947.96 : 1,218,525,086.70 = 491,821,268.28 : x
  2. Step 2: Convert to fraction form
    882,961,947.96/1,218,525,086.70 = 491,821,268.28/x
  3. Step 3: Cross multiply
    882,961,947.96x = 1,218,525,086.70 × 491,821,268.28
  4. Step 4: Simplify right side
    882,961,947.96x = 599,296,553,571,790,976
  5. Step 5: Solve for x
    x = 599,296,553,571,790,976/882,961,947.96
  6. Step 6: Final answer
    x = 678,734,293.09

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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.