Home / 918,961,085.56-1,268,174,391.54-501,275,228.44

Finding the Fourth Proportional to 918,961,085.56, 1,268,174,391.54 and 501,275,228.44

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Solution

The fourth proportional to 918,961,085.56, 1,268,174,391.54 and 501,275,228.44 is: 691,764,230.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,961,085.56 : 1,268,174,391.54 = 501,275,228.44 : x
  2. Step 2: Convert to fraction form
    918,961,085.56/1,268,174,391.54 = 501,275,228.44/x
  3. Step 3: Cross multiply
    918,961,085.56x = 1,268,174,391.54 × 501,275,228.44
  4. Step 4: Simplify right side
    918,961,085.56x = 635,704,407,820,971,520
  5. Step 5: Solve for x
    x = 635,704,407,820,971,520/918,961,085.56
  6. Step 6: Final answer
    x = 691,764,230.07

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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.