Home / 8,620,755.75-12,916,500.46-5,201,858.74

Finding the Fourth Proportional to 8,620,755.75, 12,916,500.46 and 5,201,858.74

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Solution

The fourth proportional to 8,620,755.75, 12,916,500.46 and 5,201,858.74 is: 7,793,958.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,620,755.75 : 12,916,500.46 = 5,201,858.74 : x
  2. Step 2: Convert to fraction form
    8,620,755.75/12,916,500.46 = 5,201,858.74/x
  3. Step 3: Cross multiply
    8,620,755.75x = 12,916,500.46 × 5,201,858.74
  4. Step 4: Simplify right side
    8,620,755.75x = 67,189,810,808,065.03
  5. Step 5: Solve for x
    x = 67,189,810,808,065.03/8,620,755.75
  6. Step 6: Final answer
    x = 7,793,958.30

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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.