Home / 12,485,764.70-18,729,894.45-3,388,006.70

Finding the Fourth Proportional to 12,485,764.70, 18,729,894.45 and 3,388,006.70

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Solution

The fourth proportional to 12,485,764.70, 18,729,894.45 and 3,388,006.70 is: 5,082,348.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,485,764.70 : 18,729,894.45 = 3,388,006.70 : x
  2. Step 2: Convert to fraction form
    12,485,764.70/18,729,894.45 = 3,388,006.70/x
  3. Step 3: Cross multiply
    12,485,764.70x = 18,729,894.45 × 3,388,006.70
  4. Step 4: Simplify right side
    12,485,764.70x = 63,457,007,886,892.81
  5. Step 5: Solve for x
    x = 63,457,007,886,892.81/12,485,764.70
  6. Step 6: Final answer
    x = 5,082,348.53

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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.