Home / 20,002,012.80-30,003,019.20-13,545,004.65

Finding the Fourth Proportional to 20,002,012.80, 30,003,019.20 and 13,545,004.65

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Solution

The fourth proportional to 20,002,012.80, 30,003,019.20 and 13,545,004.65 is: 20,317,506.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,002,012.80 : 30,003,019.20 = 13,545,004.65 : x
  2. Step 2: Convert to fraction form
    20,002,012.80/30,003,019.20 = 13,545,004.65/x
  3. Step 3: Cross multiply
    20,002,012.80x = 30,003,019.20 × 13,545,004.65
  4. Step 4: Simplify right side
    20,002,012.80x = 406,391,034,578,039.25
  5. Step 5: Solve for x
    x = 406,391,034,578,039.25/20,002,012.80
  6. Step 6: Final answer
    x = 20,317,506.98

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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.