Home / 221,185,040.80-331,777,561.20-205,060,727.20

Finding the Fourth Proportional to 221,185,040.80, 331,777,561.20 and 205,060,727.20

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Solution

The fourth proportional to 221,185,040.80, 331,777,561.20 and 205,060,727.20 is: 307,591,090.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,185,040.80 : 331,777,561.20 = 205,060,727.20 : x
  2. Step 2: Convert to fraction form
    221,185,040.80/331,777,561.20 = 205,060,727.20/x
  3. Step 3: Cross multiply
    221,185,040.80x = 331,777,561.20 × 205,060,727.20
  4. Step 4: Simplify right side
    221,185,040.80x = 68,034,547,968,314,496
  5. Step 5: Solve for x
    x = 68,034,547,968,314,496/221,185,040.80
  6. Step 6: Final answer
    x = 307,591,090.80

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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.