Home / 618,227,712.80-927,341,569.20-331,573,248.80

Finding the Fourth Proportional to 618,227,712.80, 927,341,569.20 and 331,573,248.80

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Solution

The fourth proportional to 618,227,712.80, 927,341,569.20 and 331,573,248.80 is: 497,359,873.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,227,712.80 : 927,341,569.20 = 331,573,248.80 : x
  2. Step 2: Convert to fraction form
    618,227,712.80/927,341,569.20 = 331,573,248.80/x
  3. Step 3: Cross multiply
    618,227,712.80x = 927,341,569.20 × 331,573,248.80
  4. Step 4: Simplify right side
    618,227,712.80x = 307,481,656,846,934,016
  5. Step 5: Solve for x
    x = 307,481,656,846,934,016/618,227,712.80
  6. Step 6: Final answer
    x = 497,359,873.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.