Home / 18,620,727.74-27,917,175.78-12,846,985.94

Finding the Fourth Proportional to 18,620,727.74, 27,917,175.78 and 12,846,985.94

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Solution

The fourth proportional to 18,620,727.74, 27,917,175.78 and 12,846,985.94 is: 19,260,877.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,620,727.74 : 27,917,175.78 = 12,846,985.94 : x
  2. Step 2: Convert to fraction form
    18,620,727.74/27,917,175.78 = 12,846,985.94/x
  3. Step 3: Cross multiply
    18,620,727.74x = 27,917,175.78 × 12,846,985.94
  4. Step 4: Simplify right side
    18,620,727.74x = 358,651,564,730,168.56
  5. Step 5: Solve for x
    x = 358,651,564,730,168.56/18,620,727.74
  6. Step 6: Final answer
    x = 19,260,877.97

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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.