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Finding the Fourth Proportional to 79,892,749.80, 119,877,032.70 and 55,338,433.38

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Solution

The fourth proportional to 79,892,749.80, 119,877,032.70 and 55,338,433.38 is: 83,033,907.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,892,749.80 : 119,877,032.70 = 55,338,433.38 : x
  2. Step 2: Convert to fraction form
    79,892,749.80/119,877,032.70 = 55,338,433.38/x
  3. Step 3: Cross multiply
    79,892,749.80x = 119,877,032.70 × 55,338,433.38
  4. Step 4: Simplify right side
    79,892,749.80x = 6,633,807,187,861,032
  5. Step 5: Solve for x
    x = 6,633,807,187,861,032/79,892,749.80
  6. Step 6: Final answer
    x = 83,033,907.39

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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.