Home / 278,502,904.55-417,754,356.83-74,030,979.80

Finding the Fourth Proportional to 278,502,904.55, 417,754,356.83 and 74,030,979.80

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Solution

The fourth proportional to 278,502,904.55, 417,754,356.83 and 74,030,979.80 is: 111,046,469.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,502,904.55 : 417,754,356.83 = 74,030,979.80 : x
  2. Step 2: Convert to fraction form
    278,502,904.55/417,754,356.83 = 74,030,979.80/x
  3. Step 3: Cross multiply
    278,502,904.55x = 417,754,356.83 × 74,030,979.80
  4. Step 4: Simplify right side
    278,502,904.55x = 30,926,764,351,473,564
  5. Step 5: Solve for x
    x = 30,926,764,351,473,564/278,502,904.55
  6. Step 6: Final answer
    x = 111,046,469.70

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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.