Home / 400,193,356.95-552,284,092.80-221,577,243.75

Finding the Fourth Proportional to 400,193,356.95, 552,284,092.80 and 221,577,243.75

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Solution

The fourth proportional to 400,193,356.95, 552,284,092.80 and 221,577,243.75 is: 305,786,152.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,193,356.95 : 552,284,092.80 = 221,577,243.75 : x
  2. Step 2: Convert to fraction form
    400,193,356.95/552,284,092.80 = 221,577,243.75/x
  3. Step 3: Cross multiply
    400,193,356.95x = 552,284,092.80 × 221,577,243.75
  4. Step 4: Simplify right side
    400,193,356.95x = 122,373,587,049,593,216
  5. Step 5: Solve for x
    x = 122,373,587,049,593,216/400,193,356.95
  6. Step 6: Final answer
    x = 305,786,152.93

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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.