Home / 20,828,528.57-31,244,846.26-7,179,878.12

Finding the Fourth Proportional to 20,828,528.57, 31,244,846.26 and 7,179,878.12

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Solution

The fourth proportional to 20,828,528.57, 31,244,846.26 and 7,179,878.12 is: 10,770,525.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,828,528.57 : 31,244,846.26 = 7,179,878.12 : x
  2. Step 2: Convert to fraction form
    20,828,528.57/31,244,846.26 = 7,179,878.12/x
  3. Step 3: Cross multiply
    20,828,528.57x = 31,244,846.26 × 7,179,878.12
  4. Step 4: Simplify right side
    20,828,528.57x = 224,334,187,850,763.91
  5. Step 5: Solve for x
    x = 224,334,187,850,763.91/20,828,528.57
  6. Step 6: Final answer
    x = 10,770,525.01

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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.