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Finding the Fourth Proportional to 79,207,649.60, 118,832,469.60 and 28,084,337.60

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Solution

The fourth proportional to 79,207,649.60, 118,832,469.60 and 28,084,337.60 is: 42,133,950.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,207,649.60 : 118,832,469.60 = 28,084,337.60 : x
  2. Step 2: Convert to fraction form
    79,207,649.60/118,832,469.60 = 28,084,337.60/x
  3. Step 3: Cross multiply
    79,207,649.60x = 118,832,469.60 × 28,084,337.60
  4. Step 4: Simplify right side
    79,207,649.60x = 3,337,331,194,088,137
  5. Step 5: Solve for x
    x = 3,337,331,194,088,137/79,207,649.60
  6. Step 6: Final answer
    x = 42,133,950.58

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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.