Home / 12,775,986.70-19,165,729.65-4,255,434.70

Finding the Fourth Proportional to 12,775,986.70, 19,165,729.65 and 4,255,434.70

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Solution

The fourth proportional to 12,775,986.70, 19,165,729.65 and 4,255,434.70 is: 6,383,734.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,775,986.70 : 19,165,729.65 = 4,255,434.70 : x
  2. Step 2: Convert to fraction form
    12,775,986.70/19,165,729.65 = 4,255,434.70/x
  3. Step 3: Cross multiply
    12,775,986.70x = 19,165,729.65 × 4,255,434.70
  4. Step 4: Simplify right side
    12,775,986.70x = 81,558,511,003,428.86
  5. Step 5: Solve for x
    x = 81,558,511,003,428.86/12,775,986.70
  6. Step 6: Final answer
    x = 6,383,734.81

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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.