Home / 278,351,975,100.28-417,357,087,980.97-108,172,858,811.97

Finding the Fourth Proportional to 278,351,975,100.28, 417,357,087,980.97 and 108,172,858,811.97

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Solution

The fourth proportional to 278,351,975,100.28, 417,357,087,980.97 and 108,172,858,811.97 is: 162,192,883,079.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,351,975,100.28 : 417,357,087,980.97 = 108,172,858,811.97 : x
  2. Step 2: Convert to fraction form
    278,351,975,100.28/417,357,087,980.97 = 108,172,858,811.97/x
  3. Step 3: Cross multiply
    278,351,975,100.28x = 417,357,087,980.97 × 108,172,858,811.97
  4. Step 4: Simplify right side
    278,351,975,100.28x = 45,146,709,352,340,403,519,488
  5. Step 5: Solve for x
    x = 45,146,709,352,340,403,519,488/278,351,975,100.28
  6. Step 6: Final answer
    x = 162,192,883,079.33

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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.