Home / 12,586,502.70-18,879,754.05-11,168,160.30

Finding the Fourth Proportional to 12,586,502.70, 18,879,754.05 and 11,168,160.30

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Solution

The fourth proportional to 12,586,502.70, 18,879,754.05 and 11,168,160.30 is: 16,752,240.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,586,502.70 : 18,879,754.05 = 11,168,160.30 : x
  2. Step 2: Convert to fraction form
    12,586,502.70/18,879,754.05 = 11,168,160.30/x
  3. Step 3: Cross multiply
    12,586,502.70x = 18,879,754.05 × 11,168,160.30
  4. Step 4: Simplify right side
    12,586,502.70x = 210,852,119,654,974.25
  5. Step 5: Solve for x
    x = 210,852,119,654,974.25/12,586,502.70
  6. Step 6: Final answer
    x = 16,752,240.45

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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.