Home / 312,532,261.40-431,302,439.96-171,409,100.60

Finding the Fourth Proportional to 312,532,261.40, 431,302,439.96 and 171,409,100.60

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Solution

The fourth proportional to 312,532,261.40, 431,302,439.96 and 171,409,100.60 is: 236,548,902.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,532,261.40 : 431,302,439.96 = 171,409,100.60 : x
  2. Step 2: Convert to fraction form
    312,532,261.40/431,302,439.96 = 171,409,100.60/x
  3. Step 3: Cross multiply
    312,532,261.40x = 431,302,439.96 × 171,409,100.60
  4. Step 4: Simplify right side
    312,532,261.40x = 73,929,163,317,115,536
  5. Step 5: Solve for x
    x = 73,929,163,317,115,536/312,532,261.40
  6. Step 6: Final answer
    x = 236,548,902.14

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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.