Home / 221,231,100.30-331,846,650.45-119,194,428.30

Finding the Fourth Proportional to 221,231,100.30, 331,846,650.45 and 119,194,428.30

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Solution

The fourth proportional to 221,231,100.30, 331,846,650.45 and 119,194,428.30 is: 178,791,642.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,231,100.30 : 331,846,650.45 = 119,194,428.30 : x
  2. Step 2: Convert to fraction form
    221,231,100.30/331,846,650.45 = 119,194,428.30/x
  3. Step 3: Cross multiply
    221,231,100.30x = 331,846,650.45 × 119,194,428.30
  4. Step 4: Simplify right side
    221,231,100.30x = 39,554,271,783,657,688
  5. Step 5: Solve for x
    x = 39,554,271,783,657,688/221,231,100.30
  6. Step 6: Final answer
    x = 178,791,642.45

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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.