Home / 278,351,975,099.52-417,357,087,979.86-108,172,858,811.22

Finding the Fourth Proportional to 278,351,975,099.52, 417,357,087,979.86 and 108,172,858,811.22

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Solution

The fourth proportional to 278,351,975,099.52, 417,357,087,979.86 and 108,172,858,811.22 is: 162,192,883,078.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,351,975,099.52 : 417,357,087,979.86 = 108,172,858,811.22 : x
  2. Step 2: Convert to fraction form
    278,351,975,099.52/417,357,087,979.86 = 108,172,858,811.22/x
  3. Step 3: Cross multiply
    278,351,975,099.52x = 417,357,087,979.86 × 108,172,858,811.22
  4. Step 4: Simplify right side
    278,351,975,099.52x = 45,146,709,351,907,316,465,664
  5. Step 5: Solve for x
    x = 45,146,709,351,907,316,465,664/278,351,975,099.52
  6. Step 6: Final answer
    x = 162,192,883,078.22

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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.