Home / 138,455,786.97-207,684,032.24-56,574,665.42

Finding the Fourth Proportional to 138,455,786.97, 207,684,032.24 and 56,574,665.42

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Solution

The fourth proportional to 138,455,786.97, 207,684,032.24 and 56,574,665.42 is: 84,862,141.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,455,786.97 : 207,684,032.24 = 56,574,665.42 : x
  2. Step 2: Convert to fraction form
    138,455,786.97/207,684,032.24 = 56,574,665.42/x
  3. Step 3: Cross multiply
    138,455,786.97x = 207,684,032.24 × 56,574,665.42
  4. Step 4: Simplify right side
    138,455,786.97x = 11,749,654,636,157,510
  5. Step 5: Solve for x
    x = 11,749,654,636,157,510/138,455,786.97
  6. Step 6: Final answer
    x = 84,862,141.87

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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.