Home / 20,714,828.80-31,072,243.20-13,175,219.20

Finding the Fourth Proportional to 20,714,828.80, 31,072,243.20 and 13,175,219.20

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Solution

The fourth proportional to 20,714,828.80, 31,072,243.20 and 13,175,219.20 is: 19,762,828.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,714,828.80 : 31,072,243.20 = 13,175,219.20 : x
  2. Step 2: Convert to fraction form
    20,714,828.80/31,072,243.20 = 13,175,219.20/x
  3. Step 3: Cross multiply
    20,714,828.80x = 31,072,243.20 × 13,175,219.20
  4. Step 4: Simplify right side
    20,714,828.80x = 409,383,615,195,709.44
  5. Step 5: Solve for x
    x = 409,383,615,195,709.44/20,714,828.80
  6. Step 6: Final answer
    x = 19,762,828.80

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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.