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Finding the Fourth Proportional to 392,579,794.85, 541,781,422.00 and 225,314,718.80

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Solution

The fourth proportional to 392,579,794.85, 541,781,422.00 and 225,314,718.80 is: 310,946,539.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,579,794.85 : 541,781,422.00 = 225,314,718.80 : x
  2. Step 2: Convert to fraction form
    392,579,794.85/541,781,422.00 = 225,314,718.80/x
  3. Step 3: Cross multiply
    392,579,794.85x = 541,781,422.00 × 225,314,718.80
  4. Step 4: Simplify right side
    392,579,794.85x = 122,071,328,745,721,920
  5. Step 5: Solve for x
    x = 122,071,328,745,721,920/392,579,794.85
  6. Step 6: Final answer
    x = 310,946,539.66

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.