Home / 20,168,998.80-30,217,412.70-12,267,367.80

Finding the Fourth Proportional to 20,168,998.80, 30,217,412.70 and 12,267,367.80

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Solution

The fourth proportional to 20,168,998.80, 30,217,412.70 and 12,267,367.80 is: 18,379,103.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,168,998.80 : 30,217,412.70 = 12,267,367.80 : x
  2. Step 2: Convert to fraction form
    20,168,998.80/30,217,412.70 = 12,267,367.80/x
  3. Step 3: Cross multiply
    20,168,998.80x = 30,217,412.70 × 12,267,367.80
  4. Step 4: Simplify right side
    20,168,998.80x = 370,688,115,555,291.06
  5. Step 5: Solve for x
    x = 370,688,115,555,291.06/20,168,998.80
  6. Step 6: Final answer
    x = 18,379,103.46

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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.