Home / 278,351,975,100.52-417,357,087,981.36-108,172,858,812.22

Finding the Fourth Proportional to 278,351,975,100.52, 417,357,087,981.36 and 108,172,858,812.22

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Solution

The fourth proportional to 278,351,975,100.52, 417,357,087,981.36 and 108,172,858,812.22 is: 162,192,883,079.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,351,975,100.52 : 417,357,087,981.36 = 108,172,858,812.22 : x
  2. Step 2: Convert to fraction form
    278,351,975,100.52/417,357,087,981.36 = 108,172,858,812.22/x
  3. Step 3: Cross multiply
    278,351,975,100.52x = 417,357,087,981.36 × 108,172,858,812.22
  4. Step 4: Simplify right side
    278,351,975,100.52x = 45,146,709,352,486,935,724,032
  5. Step 5: Solve for x
    x = 45,146,709,352,486,935,724,032/278,351,975,100.52
  6. Step 6: Final answer
    x = 162,192,883,079.72

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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.