Home / 400,148,648.98-552,193,275.57-221,540,497.55

Finding the Fourth Proportional to 400,148,648.98, 552,193,275.57 and 221,540,497.55

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Solution

The fourth proportional to 400,148,648.98, 552,193,275.57 and 221,540,497.55 is: 305,719,320.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,148,648.98 : 552,193,275.57 = 221,540,497.55 : x
  2. Step 2: Convert to fraction form
    400,148,648.98/552,193,275.57 = 221,540,497.55/x
  3. Step 3: Cross multiply
    400,148,648.98x = 552,193,275.57 × 221,540,497.55
  4. Step 4: Simplify right side
    400,148,648.98x = 122,333,173,013,542,080
  5. Step 5: Solve for x
    x = 122,333,173,013,542,080/400,148,648.98
  6. Step 6: Final answer
    x = 305,719,320.37

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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.