Home / 20,715,232.80-31,072,849.20-13,175,623.20

Finding the Fourth Proportional to 20,715,232.80, 31,072,849.20 and 13,175,623.20

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Solution

The fourth proportional to 20,715,232.80, 31,072,849.20 and 13,175,623.20 is: 19,763,434.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,715,232.80 : 31,072,849.20 = 13,175,623.20 : x
  2. Step 2: Convert to fraction form
    20,715,232.80/31,072,849.20 = 13,175,623.20/x
  3. Step 3: Cross multiply
    20,715,232.80x = 31,072,849.20 × 13,175,623.20
  4. Step 4: Simplify right side
    20,715,232.80x = 409,404,152,809,621.44
  5. Step 5: Solve for x
    x = 409,404,152,809,621.44/20,715,232.80
  6. Step 6: Final answer
    x = 19,763,434.80

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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.