Home / 79,194,640.60-118,803,770.70-28,072,640.80

Finding the Fourth Proportional to 79,194,640.60, 118,803,770.70 and 28,072,640.80

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Solution

The fourth proportional to 79,194,640.60, 118,803,770.70 and 28,072,640.80 is: 42,113,147.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,194,640.60 : 118,803,770.70 = 28,072,640.80 : x
  2. Step 2: Convert to fraction form
    79,194,640.60/118,803,770.70 = 28,072,640.80/x
  3. Step 3: Cross multiply
    79,194,640.60x = 118,803,770.70 × 28,072,640.80
  4. Step 4: Simplify right side
    79,194,640.60x = 3,335,135,580,546,664.50
  5. Step 5: Solve for x
    x = 3,335,135,580,546,664.50/79,194,640.60
  6. Step 6: Final answer
    x = 42,113,147.50

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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.