Home / 221,301,908.40-331,952,862.60-178,255,187.40

Finding the Fourth Proportional to 221,301,908.40, 331,952,862.60 and 178,255,187.40

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Solution

The fourth proportional to 221,301,908.40, 331,952,862.60 and 178,255,187.40 is: 267,382,781.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,301,908.40 : 331,952,862.60 = 178,255,187.40 : x
  2. Step 2: Convert to fraction form
    221,301,908.40/331,952,862.60 = 178,255,187.40/x
  3. Step 3: Cross multiply
    221,301,908.40x = 331,952,862.60 × 178,255,187.40
  4. Step 4: Simplify right side
    221,301,908.40x = 59,172,319,730,729,456
  5. Step 5: Solve for x
    x = 59,172,319,730,729,456/221,301,908.40
  6. Step 6: Final answer
    x = 267,382,781.10

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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.