Home / 318,890,816.34-440,069,322.97-172,213,100.34

Finding the Fourth Proportional to 318,890,816.34, 440,069,322.97 and 172,213,100.34

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Solution

The fourth proportional to 318,890,816.34, 440,069,322.97 and 172,213,100.34 is: 237,654,076.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,890,816.34 : 440,069,322.97 = 172,213,100.34 : x
  2. Step 2: Convert to fraction form
    318,890,816.34/440,069,322.97 = 172,213,100.34/x
  3. Step 3: Cross multiply
    318,890,816.34x = 440,069,322.97 × 172,213,100.34
  4. Step 4: Simplify right side
    318,890,816.34x = 75,785,702,473,188,480
  5. Step 5: Solve for x
    x = 75,785,702,473,188,480/318,890,816.34
  6. Step 6: Final answer
    x = 237,654,076.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.