Home / 400,148,573.85-552,193,172.02-221,540,422.52

Finding the Fourth Proportional to 400,148,573.85, 552,193,172.02 and 221,540,422.52

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Solution

The fourth proportional to 400,148,573.85, 552,193,172.02 and 221,540,422.52 is: 305,719,216.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,148,573.85 : 552,193,172.02 = 221,540,422.52 : x
  2. Step 2: Convert to fraction form
    400,148,573.85/552,193,172.02 = 221,540,422.52/x
  3. Step 3: Cross multiply
    400,148,573.85x = 552,193,172.02 × 221,540,422.52
  4. Step 4: Simplify right side
    400,148,573.85x = 122,333,108,641,152,864
  5. Step 5: Solve for x
    x = 122,333,108,641,152,864/400,148,573.85
  6. Step 6: Final answer
    x = 305,719,216.90

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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.