Home / 30,121,179.80-45,132,003.30-25,642,203.80

Finding the Fourth Proportional to 30,121,179.80, 45,132,003.30 and 25,642,203.80

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Solution

The fourth proportional to 30,121,179.80, 45,132,003.30 and 25,642,203.80 is: 38,420,939.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,121,179.80 : 45,132,003.30 = 25,642,203.80 : x
  2. Step 2: Convert to fraction form
    30,121,179.80/45,132,003.30 = 25,642,203.80/x
  3. Step 3: Cross multiply
    30,121,179.80x = 45,132,003.30 × 25,642,203.80
  4. Step 4: Simplify right side
    30,121,179.80x = 1,157,284,026,520,872.50
  5. Step 5: Solve for x
    x = 1,157,284,026,520,872.50/30,121,179.80
  6. Step 6: Final answer
    x = 38,420,939.49

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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.