Home / 347,646,421.77-521,469,819.91-129,268,388.49

Finding the Fourth Proportional to 347,646,421.77, 521,469,819.91 and 129,268,388.49

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Solution

The fourth proportional to 347,646,421.77, 521,469,819.91 and 129,268,388.49 is: 193,902,652.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,646,421.77 : 521,469,819.91 = 129,268,388.49 : x
  2. Step 2: Convert to fraction form
    347,646,421.77/521,469,819.91 = 129,268,388.49/x
  3. Step 3: Cross multiply
    347,646,421.77x = 521,469,819.91 × 129,268,388.49
  4. Step 4: Simplify right side
    347,646,421.77x = 67,409,563,265,936,216
  5. Step 5: Solve for x
    x = 67,409,563,265,936,216/347,646,421.77
  6. Step 6: Final answer
    x = 193,902,652.36

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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.