Home / 405,448,938.78-559,541,260.40-226,822,171.23

Finding the Fourth Proportional to 405,448,938.78, 559,541,260.40 and 226,822,171.23

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Solution

The fourth proportional to 405,448,938.78, 559,541,260.40 and 226,822,171.23 is: 313,026,749.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,448,938.78 : 559,541,260.40 = 226,822,171.23 : x
  2. Step 2: Convert to fraction form
    405,448,938.78/559,541,260.40 = 226,822,171.23/x
  3. Step 3: Cross multiply
    405,448,938.78x = 559,541,260.40 × 226,822,171.23
  4. Step 4: Simplify right side
    405,448,938.78x = 126,916,363,578,664,720
  5. Step 5: Solve for x
    x = 126,916,363,578,664,720/405,448,938.78
  6. Step 6: Final answer
    x = 313,026,749.95

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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.