Home / 80,901,504,014.10-121,352,256,021.15-66,196,130,010.90

Finding the Fourth Proportional to 80,901,504,014.10, 121,352,256,021.15 and 66,196,130,010.90

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Solution

The fourth proportional to 80,901,504,014.10, 121,352,256,021.15 and 66,196,130,010.90 is: 99,294,195,016.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,901,504,014.10 : 121,352,256,021.15 = 66,196,130,010.90 : x
  2. Step 2: Convert to fraction form
    80,901,504,014.10/121,352,256,021.15 = 66,196,130,010.90/x
  3. Step 3: Cross multiply
    80,901,504,014.10x = 121,352,256,021.15 × 66,196,130,010.90
  4. Step 4: Simplify right side
    80,901,504,014.10x = 8,033,049,716,692,067,811,328
  5. Step 5: Solve for x
    x = 8,033,049,716,692,067,811,328/80,901,504,014.10
  6. Step 6: Final answer
    x = 99,294,195,016.35

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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.