Home / 206,000,505.84-284,276,126.16-111,912,221.28

Finding the Fourth Proportional to 206,000,505.84, 284,276,126.16 and 111,912,221.28

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Solution

The fourth proportional to 206,000,505.84, 284,276,126.16 and 111,912,221.28 is: 154,436,381.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,000,505.84 : 284,276,126.16 = 111,912,221.28 : x
  2. Step 2: Convert to fraction form
    206,000,505.84/284,276,126.16 = 111,912,221.28/x
  3. Step 3: Cross multiply
    206,000,505.84x = 284,276,126.16 × 111,912,221.28
  4. Step 4: Simplify right side
    206,000,505.84x = 31,813,972,735,439,120
  5. Step 5: Solve for x
    x = 31,813,972,735,439,120/206,000,505.84
  6. Step 6: Final answer
    x = 154,436,381.63

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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.