Home / 307,313,494.89-423,824,604.77-217,828,442.36

Finding the Fourth Proportional to 307,313,494.89, 423,824,604.77 and 217,828,442.36

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Solution

The fourth proportional to 307,313,494.89, 423,824,604.77 and 217,828,442.36 is: 300,413,275.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,313,494.89 : 423,824,604.77 = 217,828,442.36 : x
  2. Step 2: Convert to fraction form
    307,313,494.89/423,824,604.77 = 217,828,442.36/x
  3. Step 3: Cross multiply
    307,313,494.89x = 423,824,604.77 × 217,828,442.36
  4. Step 4: Simplify right side
    307,313,494.89x = 92,321,053,490,891,728
  5. Step 5: Solve for x
    x = 92,321,053,490,891,728/307,313,494.89
  6. Step 6: Final answer
    x = 300,413,275.13

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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.