Home / 78,485,328,014.55-117,727,992,021.82-78,485,328,014.55

Finding the Fourth Proportional to 78,485,328,014.55, 117,727,992,021.82 and 78,485,328,014.55

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Solution

The fourth proportional to 78,485,328,014.55, 117,727,992,021.82 and 78,485,328,014.55 is: 117,727,992,021.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,485,328,014.55 : 117,727,992,021.82 = 78,485,328,014.55 : x
  2. Step 2: Convert to fraction form
    78,485,328,014.55/117,727,992,021.82 = 78,485,328,014.55/x
  3. Step 3: Cross multiply
    78,485,328,014.55x = 117,727,992,021.82 × 78,485,328,014.55
  4. Step 4: Simplify right side
    78,485,328,014.55x = 9,239,920,070,326,868,770,816
  5. Step 5: Solve for x
    x = 9,239,920,070,326,868,770,816/78,485,328,014.55
  6. Step 6: Final answer
    x = 117,727,992,021.82

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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.