Home / 278,788,049.17-418,229,715.89-114,936,236.01

Finding the Fourth Proportional to 278,788,049.17, 418,229,715.89 and 114,936,236.01

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Solution

The fourth proportional to 278,788,049.17, 418,229,715.89 and 114,936,236.01 is: 172,423,995.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,788,049.17 : 418,229,715.89 = 114,936,236.01 : x
  2. Step 2: Convert to fraction form
    278,788,049.17/418,229,715.89 = 114,936,236.01/x
  3. Step 3: Cross multiply
    278,788,049.17x = 418,229,715.89 × 114,936,236.01
  4. Step 4: Simplify right side
    278,788,049.17x = 48,069,749,332,215,632
  5. Step 5: Solve for x
    x = 48,069,749,332,215,632/278,788,049.17
  6. Step 6: Final answer
    x = 172,423,995.49

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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.