Home / 1,581,131,549.38-2,181,961,494.82-876,389,410.74

Finding the Fourth Proportional to 1,581,131,549.38, 2,181,961,494.82 and 876,389,410.74

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Solution

The fourth proportional to 1,581,131,549.38, 2,181,961,494.82 and 876,389,410.74 is: 1,209,417,362.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581,131,549.38 : 2,181,961,494.82 = 876,389,410.74 : x
  2. Step 2: Convert to fraction form
    1,581,131,549.38/2,181,961,494.82 = 876,389,410.74/x
  3. Step 3: Cross multiply
    1,581,131,549.38x = 2,181,961,494.82 × 876,389,410.74
  4. Step 4: Simplify right side
    1,581,131,549.38x = 1,912,247,948,702,669,568
  5. Step 5: Solve for x
    x = 1,912,247,948,702,669,568/1,581,131,549.38
  6. Step 6: Final answer
    x = 1,209,417,362.81

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Double scale
Find fourth proportional to 1,581,131,550.38, 2,181,961,496.20 and 876,389,411.74
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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.