Home / 392,472,982.96-541,588,312.83-216,251,116.76

Finding the Fourth Proportional to 392,472,982.96, 541,588,312.83 and 216,251,116.76

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Solution

The fourth proportional to 392,472,982.96, 541,588,312.83 and 216,251,116.76 is: 298,413,094.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,472,982.96 : 541,588,312.83 = 216,251,116.76 : x
  2. Step 2: Convert to fraction form
    392,472,982.96/541,588,312.83 = 216,251,116.76/x
  3. Step 3: Cross multiply
    392,472,982.96x = 541,588,312.83 × 216,251,116.76
  4. Step 4: Simplify right side
    392,472,982.96x = 117,119,077,475,816,640
  5. Step 5: Solve for x
    x = 117,119,077,475,816,640/392,472,982.96
  6. Step 6: Final answer
    x = 298,413,094.82

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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.