Home / 221,229,401.80-331,844,102.70-139,440,631.90

Finding the Fourth Proportional to 221,229,401.80, 331,844,102.70 and 139,440,631.90

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Solution

The fourth proportional to 221,229,401.80, 331,844,102.70 and 139,440,631.90 is: 209,160,947.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,229,401.80 : 331,844,102.70 = 139,440,631.90 : x
  2. Step 2: Convert to fraction form
    221,229,401.80/331,844,102.70 = 139,440,631.90/x
  3. Step 3: Cross multiply
    221,229,401.80x = 331,844,102.70 × 139,440,631.90
  4. Step 4: Simplify right side
    221,229,401.80x = 46,272,551,372,776,496
  5. Step 5: Solve for x
    x = 46,272,551,372,776,496/221,229,401.80
  6. Step 6: Final answer
    x = 209,160,947.85

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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.