Home / 491,805,448.74-678,692,180.61-282,957,402.60

Finding the Fourth Proportional to 491,805,448.74, 678,692,180.61 and 282,957,402.60

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Solution

The fourth proportional to 491,805,448.74, 678,692,180.61 and 282,957,402.60 is: 390,481,596.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,805,448.74 : 678,692,180.61 = 282,957,402.60 : x
  2. Step 2: Convert to fraction form
    491,805,448.74/678,692,180.61 = 282,957,402.60/x
  3. Step 3: Cross multiply
    491,805,448.74x = 678,692,180.61 × 282,957,402.60
  4. Step 4: Simplify right side
    491,805,448.74x = 192,040,976,590,335,712
  5. Step 5: Solve for x
    x = 192,040,976,590,335,712/491,805,448.74
  6. Step 6: Final answer
    x = 390,481,596.09

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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.