Home / 8,786,164.51-13,188,563.40-7,781,806.63

Finding the Fourth Proportional to 8,786,164.51, 13,188,563.40 and 7,781,806.63

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Solution

The fourth proportional to 8,786,164.51, 13,188,563.40 and 7,781,806.63 is: 11,680,961.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,786,164.51 : 13,188,563.40 = 7,781,806.63 : x
  2. Step 2: Convert to fraction form
    8,786,164.51/13,188,563.40 = 7,781,806.63/x
  3. Step 3: Cross multiply
    8,786,164.51x = 13,188,563.40 × 7,781,806.63
  4. Step 4: Simplify right side
    8,786,164.51x = 102,630,850,040,352.53
  5. Step 5: Solve for x
    x = 102,630,850,040,352.53/8,786,164.51
  6. Step 6: Final answer
    x = 11,680,961.58

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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.