Home / 253,208,969.30-379,760,309.11-71,413,632.02

Finding the Fourth Proportional to 253,208,969.30, 379,760,309.11 and 71,413,632.02

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Solution

The fourth proportional to 253,208,969.30, 379,760,309.11 and 71,413,632.02 is: 107,105,459.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,208,969.30 : 379,760,309.11 = 71,413,632.02 : x
  2. Step 2: Convert to fraction form
    253,208,969.30/379,760,309.11 = 71,413,632.02/x
  3. Step 3: Cross multiply
    253,208,969.30x = 379,760,309.11 × 71,413,632.02
  4. Step 4: Simplify right side
    253,208,969.30x = 27,120,062,970,582,992
  5. Step 5: Solve for x
    x = 27,120,062,970,582,992/253,208,969.30
  6. Step 6: Final answer
    x = 107,105,459.36

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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.