Home / 1,581,131,548.68-2,181,961,493.87-876,389,410.05

Finding the Fourth Proportional to 1,581,131,548.68, 2,181,961,493.87 and 876,389,410.05

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Solution

The fourth proportional to 1,581,131,548.68, 2,181,961,493.87 and 876,389,410.05 is: 1,209,417,361.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581,131,548.68 : 2,181,961,493.87 = 876,389,410.05 : x
  2. Step 2: Convert to fraction form
    1,581,131,548.68/2,181,961,493.87 = 876,389,410.05/x
  3. Step 3: Cross multiply
    1,581,131,548.68x = 2,181,961,493.87 × 876,389,410.05
  4. Step 4: Simplify right side
    1,581,131,548.68x = 1,912,247,946,356,780,544
  5. Step 5: Solve for x
    x = 1,912,247,946,356,780,544/1,581,131,548.68
  6. Step 6: Final answer
    x = 1,209,417,361.86

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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.