Home / 491,968,717.77-678,924,896.45-293,747,534.27

Finding the Fourth Proportional to 491,968,717.77, 678,924,896.45 and 293,747,534.27

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Solution

The fourth proportional to 491,968,717.77, 678,924,896.45 and 293,747,534.27 is: 405,376,413.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,968,717.77 : 678,924,896.45 = 293,747,534.27 : x
  2. Step 2: Convert to fraction form
    491,968,717.77/678,924,896.45 = 293,747,534.27/x
  3. Step 3: Cross multiply
    491,968,717.77x = 678,924,896.45 × 293,747,534.27
  4. Step 4: Simplify right side
    491,968,717.77x = 199,432,514,283,307,968
  5. Step 5: Solve for x
    x = 199,432,514,283,307,968/491,968,717.77
  6. Step 6: Final answer
    x = 405,376,413.34

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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.