Home / 70,701,660.72-106,067,755.70-21,521,359.78

Finding the Fourth Proportional to 70,701,660.72, 106,067,755.70 and 21,521,359.78

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Solution

The fourth proportional to 70,701,660.72, 106,067,755.70 and 21,521,359.78 is: 32,286,686.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,701,660.72 : 106,067,755.70 = 21,521,359.78 : x
  2. Step 2: Convert to fraction form
    70,701,660.72/106,067,755.70 = 21,521,359.78/x
  3. Step 3: Cross multiply
    70,701,660.72x = 106,067,755.70 × 21,521,359.78
  4. Step 4: Simplify right side
    70,701,660.72x = 2,282,722,331,369,239
  5. Step 5: Solve for x
    x = 2,282,722,331,369,239/70,701,660.72
  6. Step 6: Final answer
    x = 32,286,686.17

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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.