Home / 310,765,356.42-428,856,233.85-171,536,144.46

Finding the Fourth Proportional to 310,765,356.42, 428,856,233.85 and 171,536,144.46

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Solution

The fourth proportional to 310,765,356.42, 428,856,233.85 and 171,536,144.46 is: 236,719,902.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,765,356.42 : 428,856,233.85 = 171,536,144.46 : x
  2. Step 2: Convert to fraction form
    310,765,356.42/428,856,233.85 = 171,536,144.46/x
  3. Step 3: Cross multiply
    310,765,356.42x = 428,856,233.85 × 171,536,144.46
  4. Step 4: Simplify right side
    310,765,356.42x = 73,564,344,882,265,152
  5. Step 5: Solve for x
    x = 73,564,344,882,265,152/310,765,356.42
  6. Step 6: Final answer
    x = 236,719,902.53

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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.