Home / 20,186,138.80-30,243,122.70-12,284,507.80

Finding the Fourth Proportional to 20,186,138.80, 30,243,122.70 and 12,284,507.80

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Solution

The fourth proportional to 20,186,138.80, 30,243,122.70 and 12,284,507.80 is: 18,404,801.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,186,138.80 : 30,243,122.70 = 12,284,507.80 : x
  2. Step 2: Convert to fraction form
    20,186,138.80/30,243,122.70 = 12,284,507.80/x
  3. Step 3: Cross multiply
    20,186,138.80x = 30,243,122.70 × 12,284,507.80
  4. Step 4: Simplify right side
    20,186,138.80x = 371,521,876,704,507.06
  5. Step 5: Solve for x
    x = 371,521,876,704,507.06/20,186,138.80
  6. Step 6: Final answer
    x = 18,404,801.45

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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.