Home / 278,518,499.70-417,777,749.55-149,378,336.70

Finding the Fourth Proportional to 278,518,499.70, 417,777,749.55 and 149,378,336.70

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Solution

The fourth proportional to 278,518,499.70, 417,777,749.55 and 149,378,336.70 is: 224,067,505.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,518,499.70 : 417,777,749.55 = 149,378,336.70 : x
  2. Step 2: Convert to fraction form
    278,518,499.70/417,777,749.55 = 149,378,336.70/x
  3. Step 3: Cross multiply
    278,518,499.70x = 417,777,749.55 × 149,378,336.70
  4. Step 4: Simplify right side
    278,518,499.70x = 62,406,945,338,048,168
  5. Step 5: Solve for x
    x = 62,406,945,338,048,168/278,518,499.70
  6. Step 6: Final answer
    x = 224,067,505.05

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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.