Home / 393,186,158.10-589,027,211.55-211,372,910.10

Finding the Fourth Proportional to 393,186,158.10, 589,027,211.55 and 211,372,910.10

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Solution

The fourth proportional to 393,186,158.10, 589,027,211.55 and 211,372,910.10 is: 316,655,083.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,186,158.10 : 589,027,211.55 = 211,372,910.10 : x
  2. Step 2: Convert to fraction form
    393,186,158.10/589,027,211.55 = 211,372,910.10/x
  3. Step 3: Cross multiply
    393,186,158.10x = 589,027,211.55 × 211,372,910.10
  4. Step 4: Simplify right side
    393,186,158.10x = 124,504,395,833,411,824
  5. Step 5: Solve for x
    x = 124,504,395,833,411,824/393,186,158.10
  6. Step 6: Final answer
    x = 316,655,083.78

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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.