Home / 310,481,496.72-428,466,486.12-171,256,018.32

Finding the Fourth Proportional to 310,481,496.72, 428,466,486.12 and 171,256,018.32

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Solution

The fourth proportional to 310,481,496.72, 428,466,486.12 and 171,256,018.32 is: 236,334,419.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,481,496.72 : 428,466,486.12 = 171,256,018.32 : x
  2. Step 2: Convert to fraction form
    310,481,496.72/428,466,486.12 = 171,256,018.32/x
  3. Step 3: Cross multiply
    310,481,496.72x = 428,466,486.12 × 171,256,018.32
  4. Step 4: Simplify right side
    310,481,496.72x = 73,377,464,396,472,736
  5. Step 5: Solve for x
    x = 73,377,464,396,472,736/310,481,496.72
  6. Step 6: Final answer
    x = 236,334,419.83

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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.