Home / 776,198,997.69-1,162,442,379.87-447,678,527.82

Finding the Fourth Proportional to 776,198,997.69, 1,162,442,379.87 and 447,678,527.82

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Solution

The fourth proportional to 776,198,997.69, 1,162,442,379.87 and 447,678,527.82 is: 670,447,262.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,198,997.69 : 1,162,442,379.87 = 447,678,527.82 : x
  2. Step 2: Convert to fraction form
    776,198,997.69/1,162,442,379.87 = 447,678,527.82/x
  3. Step 3: Cross multiply
    776,198,997.69x = 1,162,442,379.87 × 447,678,527.82
  4. Step 4: Simplify right side
    776,198,997.69x = 520,400,493,295,778,752
  5. Step 5: Solve for x
    x = 520,400,493,295,778,752/776,198,997.69
  6. Step 6: Final answer
    x = 670,447,262.68

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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.