Home / 212,627,328,004.80-318,940,992,007.20-178,056,799,646.40

Finding the Fourth Proportional to 212,627,328,004.80, 318,940,992,007.20 and 178,056,799,646.40

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Solution

The fourth proportional to 212,627,328,004.80, 318,940,992,007.20 and 178,056,799,646.40 is: 267,085,199,469.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,627,328,004.80 : 318,940,992,007.20 = 178,056,799,646.40 : x
  2. Step 2: Convert to fraction form
    212,627,328,004.80/318,940,992,007.20 = 178,056,799,646.40/x
  3. Step 3: Cross multiply
    212,627,328,004.80x = 318,940,992,007.20 × 178,056,799,646.40
  4. Step 4: Simplify right side
    212,627,328,004.80x = 56,789,612,312,850,077,843,456
  5. Step 5: Solve for x
    x = 56,789,612,312,850,077,843,456/212,627,328,004.80
  6. Step 6: Final answer
    x = 267,085,199,469.60

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1.5x scale

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.