Home / 400,947,198.69-553,308,363.78-222,343,662.81

Finding the Fourth Proportional to 400,947,198.69, 553,308,363.78 and 222,343,662.81

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Solution

The fourth proportional to 400,947,198.69, 553,308,363.78 and 222,343,662.81 is: 306,834,936.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,947,198.69 : 553,308,363.78 = 222,343,662.81 : x
  2. Step 2: Convert to fraction form
    400,947,198.69/553,308,363.78 = 222,343,662.81/x
  3. Step 3: Cross multiply
    400,947,198.69x = 553,308,363.78 × 222,343,662.81
  4. Step 4: Simplify right side
    400,947,198.69x = 123,024,608,266,253,136
  5. Step 5: Solve for x
    x = 123,024,608,266,253,136/400,947,198.69
  6. Step 6: Final answer
    x = 306,834,936.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.