Home / 20,186,153.80-30,243,145.20-12,284,522.80

Finding the Fourth Proportional to 20,186,153.80, 30,243,145.20 and 12,284,522.80

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Solution

The fourth proportional to 20,186,153.80, 30,243,145.20 and 12,284,522.80 is: 18,404,823.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,186,153.80 : 30,243,145.20 = 12,284,522.80 : x
  2. Step 2: Convert to fraction form
    20,186,153.80/30,243,145.20 = 12,284,522.80/x
  3. Step 3: Cross multiply
    20,186,153.80x = 30,243,145.20 × 12,284,522.80
  4. Step 4: Simplify right side
    20,186,153.80x = 371,522,606,753,110.56
  5. Step 5: Solve for x
    x = 371,522,606,753,110.56/20,186,153.80
  6. Step 6: Final answer
    x = 18,404,823.94

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1.5x scale

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.