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Finding the Fourth Proportional to 79,649,356.80, 119,175,436.80 and 52,775,500.80

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Solution

The fourth proportional to 79,649,356.80, 119,175,436.80 and 52,775,500.80 is: 78,965,400.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,649,356.80 : 119,175,436.80 = 52,775,500.80 : x
  2. Step 2: Convert to fraction form
    79,649,356.80/119,175,436.80 = 52,775,500.80/x
  3. Step 3: Cross multiply
    79,649,356.80x = 119,175,436.80 × 52,775,500.80
  4. Step 4: Simplify right side
    79,649,356.80x = 6,289,543,360,178,749
  5. Step 5: Solve for x
    x = 6,289,543,360,178,749/79,649,356.80
  6. Step 6: Final answer
    x = 78,965,400.51

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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.