Home / 278,788,042.05-418,229,705.13-114,936,228.87

Finding the Fourth Proportional to 278,788,042.05, 418,229,705.13 and 114,936,228.87

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Solution

The fourth proportional to 278,788,042.05, 418,229,705.13 and 114,936,228.87 is: 172,423,984.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,788,042.05 : 418,229,705.13 = 114,936,228.87 : x
  2. Step 2: Convert to fraction form
    278,788,042.05/418,229,705.13 = 114,936,228.87/x
  3. Step 3: Cross multiply
    278,788,042.05x = 418,229,705.13 × 114,936,228.87
  4. Step 4: Simplify right side
    278,788,042.05x = 48,069,745,109,007,936
  5. Step 5: Solve for x
    x = 48,069,745,109,007,936/278,788,042.05
  6. Step 6: Final answer
    x = 172,423,984.74

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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.