Home / 8,768,580.80-13,138,874.40-7,340,907.20

Finding the Fourth Proportional to 8,768,580.80, 13,138,874.40 and 7,340,907.20

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Solution

The fourth proportional to 8,768,580.80, 13,138,874.40 and 7,340,907.20 is: 10,999,642.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,768,580.80 : 13,138,874.40 = 7,340,907.20 : x
  2. Step 2: Convert to fraction form
    8,768,580.80/13,138,874.40 = 7,340,907.20/x
  3. Step 3: Cross multiply
    8,768,580.80x = 13,138,874.40 × 7,340,907.20
  4. Step 4: Simplify right side
    8,768,580.80x = 96,451,257,682,855.69
  5. Step 5: Solve for x
    x = 96,451,257,682,855.69/8,768,580.80
  6. Step 6: Final answer
    x = 10,999,642.92

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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.