Home / 825,622,412.86-1,139,344,194.27-449,266,164.49

Finding the Fourth Proportional to 825,622,412.86, 1,139,344,194.27 and 449,266,164.49

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Solution

The fourth proportional to 825,622,412.86, 1,139,344,194.27 and 449,266,164.49 is: 619,979,288.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,622,412.86 : 1,139,344,194.27 = 449,266,164.49 : x
  2. Step 2: Convert to fraction form
    825,622,412.86/1,139,344,194.27 = 449,266,164.49/x
  3. Step 3: Cross multiply
    825,622,412.86x = 1,139,344,194.27 × 449,266,164.49
  4. Step 4: Simplify right side
    825,622,412.86x = 511,868,796,193,632,320
  5. Step 5: Solve for x
    x = 511,868,796,193,632,320/825,622,412.86
  6. Step 6: Final answer
    x = 619,979,288.62

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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.