Home / 392,047,604.27-541,006,233.20-215,831,816.21

Finding the Fourth Proportional to 392,047,604.27, 541,006,233.20 and 215,831,816.21

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Solution

The fourth proportional to 392,047,604.27, 541,006,233.20 and 215,831,816.21 is: 297,837,192.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,047,604.27 : 541,006,233.20 = 215,831,816.21 : x
  2. Step 2: Convert to fraction form
    392,047,604.27/541,006,233.20 = 215,831,816.21/x
  3. Step 3: Cross multiply
    392,047,604.27x = 541,006,233.20 × 215,831,816.21
  4. Step 4: Simplify right side
    392,047,604.27x = 116,766,357,892,486,816
  5. Step 5: Solve for x
    x = 116,766,357,892,486,816/392,047,604.27
  6. Step 6: Final answer
    x = 297,837,192.79

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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.