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Finding the Fourth Proportional to 203,472,581.60, 305,227,534.80 and 67,158,264.80

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Solution

The fourth proportional to 203,472,581.60, 305,227,534.80 and 67,158,264.80 is: 100,743,556.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,472,581.60 : 305,227,534.80 = 67,158,264.80 : x
  2. Step 2: Convert to fraction form
    203,472,581.60/305,227,534.80 = 67,158,264.80/x
  3. Step 3: Cross multiply
    203,472,581.60x = 305,227,534.80 × 67,158,264.80
  4. Step 4: Simplify right side
    203,472,581.60x = 20,498,551,606,349,616
  5. Step 5: Solve for x
    x = 20,498,551,606,349,616/203,472,581.60
  6. Step 6: Final answer
    x = 100,743,556.92

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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.