Home / 6,919,380.40-10,379,046.12-1,870,690

Finding the Fourth Proportional to 6,919,380.40, 10,379,046.12 and 1,870,690

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Solution

The fourth proportional to 6,919,380.40, 10,379,046.12 and 1,870,690 is: 2,806,028.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,919,380.40 : 10,379,046.12 = 1,870,690 : x
  2. Step 2: Convert to fraction form
    6,919,380.40/10,379,046.12 = 1,870,690/x
  3. Step 3: Cross multiply
    6,919,380.40x = 10,379,046.12 × 1,870,690
  4. Step 4: Simplify right side
    6,919,380.40x = 19,415,977,786,222.80
  5. Step 5: Solve for x
    x = 19,415,977,786,222.80/6,919,380.40
  6. Step 6: Final answer
    x = 2,806,028.38

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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.