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Finding the Fourth Proportional to 79,656,311.80, 119,484,467.70 and 49,045,310.20

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Solution

The fourth proportional to 79,656,311.80, 119,484,467.70 and 49,045,310.20 is: 73,567,965.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,656,311.80 : 119,484,467.70 = 49,045,310.20 : x
  2. Step 2: Convert to fraction form
    79,656,311.80/119,484,467.70 = 49,045,310.20/x
  3. Step 3: Cross multiply
    79,656,311.80x = 119,484,467.70 × 49,045,310.20
  4. Step 4: Simplify right side
    79,656,311.80x = 5,860,152,782,428,381
  5. Step 5: Solve for x
    x = 5,860,152,782,428,381/79,656,311.80
  6. Step 6: Final answer
    x = 73,567,965.30

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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.