Home / 311,951,154.84-430,357,064.22-188,123,020.44

Finding the Fourth Proportional to 311,951,154.84, 430,357,064.22 and 188,123,020.44

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Solution

The fourth proportional to 311,951,154.84, 430,357,064.22 and 188,123,020.44 is: 259,528,036.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,951,154.84 : 430,357,064.22 = 188,123,020.44 : x
  2. Step 2: Convert to fraction form
    311,951,154.84/430,357,064.22 = 188,123,020.44/x
  3. Step 3: Cross multiply
    311,951,154.84x = 430,357,064.22 × 188,123,020.44
  4. Step 4: Simplify right side
    311,951,154.84x = 80,960,070,788,757,456
  5. Step 5: Solve for x
    x = 80,960,070,788,757,456/311,951,154.84
  6. Step 6: Final answer
    x = 259,528,036.79

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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.