Home / 18,123,725.88-27,163,980.54-12,629,071.98

Finding the Fourth Proportional to 18,123,725.88, 27,163,980.54 and 12,629,071.98

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Solution

The fourth proportional to 18,123,725.88, 27,163,980.54 and 12,629,071.98 is: 18,928,550.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,123,725.88 : 27,163,980.54 = 12,629,071.98 : x
  2. Step 2: Convert to fraction form
    18,123,725.88/27,163,980.54 = 12,629,071.98/x
  3. Step 3: Cross multiply
    18,123,725.88x = 27,163,980.54 × 12,629,071.98
  4. Step 4: Simplify right side
    18,123,725.88x = 343,055,865,502,979.25
  5. Step 5: Solve for x
    x = 343,055,865,502,979.25/18,123,725.88
  6. Step 6: Final answer
    x = 18,928,550.77

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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.