Home / 216,660,435.22-298,991,980.12-117,541,182.61

Finding the Fourth Proportional to 216,660,435.22, 298,991,980.12 and 117,541,182.61

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Solution

The fourth proportional to 216,660,435.22, 298,991,980.12 and 117,541,182.61 is: 162,207,146.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,660,435.22 : 298,991,980.12 = 117,541,182.61 : x
  2. Step 2: Convert to fraction form
    216,660,435.22/298,991,980.12 = 117,541,182.61/x
  3. Step 3: Cross multiply
    216,660,435.22x = 298,991,980.12 × 117,541,182.61
  4. Step 4: Simplify right side
    216,660,435.22x = 35,143,870,932,715,452
  5. Step 5: Solve for x
    x = 35,143,870,932,715,452/216,660,435.22
  6. Step 6: Final answer
    x = 162,207,146.39

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1.5x scale

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.