Home / 491,805,440.30-678,692,168.98-282,957,394.16

Finding the Fourth Proportional to 491,805,440.30, 678,692,168.98 and 282,957,394.16

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Solution

The fourth proportional to 491,805,440.30, 678,692,168.98 and 282,957,394.16 is: 390,481,584.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,805,440.30 : 678,692,168.98 = 282,957,394.16 : x
  2. Step 2: Convert to fraction form
    491,805,440.30/678,692,168.98 = 282,957,394.16/x
  3. Step 3: Cross multiply
    491,805,440.30x = 678,692,168.98 × 282,957,394.16
  4. Step 4: Simplify right side
    491,805,440.30x = 192,040,967,572,368,512
  5. Step 5: Solve for x
    x = 192,040,967,572,368,512/491,805,440.30
  6. Step 6: Final answer
    x = 390,481,584.45

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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.