Home / 78,633,272.80-117,921,915.60-35,523,128.80

Finding the Fourth Proportional to 78,633,272.80, 117,921,915.60 and 35,523,128.80

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Solution

The fourth proportional to 78,633,272.80, 117,921,915.60 and 35,523,128.80 is: 53,272,046.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,633,272.80 : 117,921,915.60 = 35,523,128.80 : x
  2. Step 2: Convert to fraction form
    78,633,272.80/117,921,915.60 = 35,523,128.80/x
  3. Step 3: Cross multiply
    78,633,272.80x = 117,921,915.60 × 35,523,128.80
  4. Step 4: Simplify right side
    78,633,272.80x = 4,188,955,396,201,528.50
  5. Step 5: Solve for x
    x = 4,188,955,396,201,528.50/78,633,272.80
  6. Step 6: Final answer
    x = 53,272,046.90

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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.