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Finding the Fourth Proportional to 79,760,003.60, 119,640,005.40 and 79,760,003.60

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Solution

The fourth proportional to 79,760,003.60, 119,640,005.40 and 79,760,003.60 is: 119,640,005.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,760,003.60 : 119,640,005.40 = 79,760,003.60 : x
  2. Step 2: Convert to fraction form
    79,760,003.60/119,640,005.40 = 79,760,003.60/x
  3. Step 3: Cross multiply
    79,760,003.60x = 119,640,005.40 × 79,760,003.60
  4. Step 4: Simplify right side
    79,760,003.60x = 9,542,487,261,408,020
  5. Step 5: Solve for x
    x = 9,542,487,261,408,020/79,760,003.60
  6. Step 6: Final answer
    x = 119,640,005.40

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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.