Home / 72,171,230.40-108,256,845.60-67,919,702.40

Finding the Fourth Proportional to 72,171,230.40, 108,256,845.60 and 67,919,702.40

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Solution

The fourth proportional to 72,171,230.40, 108,256,845.60 and 67,919,702.40 is: 101,879,553.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,171,230.40 : 108,256,845.60 = 67,919,702.40 : x
  2. Step 2: Convert to fraction form
    72,171,230.40/108,256,845.60 = 67,919,702.40/x
  3. Step 3: Cross multiply
    72,171,230.40x = 108,256,845.60 × 67,919,702.40
  4. Step 4: Simplify right side
    72,171,230.40x = 7,352,772,735,914,750
  5. Step 5: Solve for x
    x = 7,352,772,735,914,750/72,171,230.40
  6. Step 6: Final answer
    x = 101,879,553.60

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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.