Home / 13,761,902.70-18,990,939.63-7,566,906.04

Finding the Fourth Proportional to 13,761,902.70, 18,990,939.63 and 7,566,906.04

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Solution

The fourth proportional to 13,761,902.70, 18,990,939.63 and 7,566,906.04 is: 10,442,063.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,761,902.70 : 18,990,939.63 = 7,566,906.04 : x
  2. Step 2: Convert to fraction form
    13,761,902.70/18,990,939.63 = 7,566,906.04/x
  3. Step 3: Cross multiply
    13,761,902.70x = 18,990,939.63 × 7,566,906.04
  4. Step 4: Simplify right side
    13,761,902.70x = 143,702,655,700,544.03
  5. Step 5: Solve for x
    x = 143,702,655,700,544.03/13,761,902.70
  6. Step 6: Final answer
    x = 10,442,063.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.