Home / 18,218,731.80-27,328,097.70-13,116,898.20

Finding the Fourth Proportional to 18,218,731.80, 27,328,097.70 and 13,116,898.20

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Solution

The fourth proportional to 18,218,731.80, 27,328,097.70 and 13,116,898.20 is: 19,675,347.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,218,731.80 : 27,328,097.70 = 13,116,898.20 : x
  2. Step 2: Convert to fraction form
    18,218,731.80/27,328,097.70 = 13,116,898.20/x
  3. Step 3: Cross multiply
    18,218,731.80x = 27,328,097.70 × 13,116,898.20
  4. Step 4: Simplify right side
    18,218,731.80x = 358,459,875,530,554.12
  5. Step 5: Solve for x
    x = 358,459,875,530,554.12/18,218,731.80
  6. Step 6: Final answer
    x = 19,675,347.30

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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.