Home / 80,873,982.99-121,418,593.44-42,562,401.30

Finding the Fourth Proportional to 80,873,982.99, 121,418,593.44 and 42,562,401.30

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Solution

The fourth proportional to 80,873,982.99, 121,418,593.44 and 42,562,401.30 is: 63,900,239.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,873,982.99 : 121,418,593.44 = 42,562,401.30 : x
  2. Step 2: Convert to fraction form
    80,873,982.99/121,418,593.44 = 42,562,401.30/x
  3. Step 3: Cross multiply
    80,873,982.99x = 121,418,593.44 × 42,562,401.30
  4. Step 4: Simplify right side
    80,873,982.99x = 5,167,866,899,274,827
  5. Step 5: Solve for x
    x = 5,167,866,899,274,827/80,873,982.99
  6. Step 6: Final answer
    x = 63,900,239.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.