Home / 79,123,402.20-118,685,103.30-48,512,400.60

Finding the Fourth Proportional to 79,123,402.20, 118,685,103.30 and 48,512,400.60

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Solution

The fourth proportional to 79,123,402.20, 118,685,103.30 and 48,512,400.60 is: 72,768,600.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,123,402.20 : 118,685,103.30 = 48,512,400.60 : x
  2. Step 2: Convert to fraction form
    79,123,402.20/118,685,103.30 = 48,512,400.60/x
  3. Step 3: Cross multiply
    79,123,402.20x = 118,685,103.30 × 48,512,400.60
  4. Step 4: Simplify right side
    79,123,402.20x = 5,757,699,276,541,982
  5. Step 5: Solve for x
    x = 5,757,699,276,541,982/79,123,402.20
  6. Step 6: Final answer
    x = 72,768,600.90

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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.