Home / 8,321,111.60-12,481,667.40-6,977,418.80

Finding the Fourth Proportional to 8,321,111.60, 12,481,667.40 and 6,977,418.80

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Solution

The fourth proportional to 8,321,111.60, 12,481,667.40 and 6,977,418.80 is: 10,466,128.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,321,111.60 : 12,481,667.40 = 6,977,418.80 : x
  2. Step 2: Convert to fraction form
    8,321,111.60/12,481,667.40 = 6,977,418.80/x
  3. Step 3: Cross multiply
    8,321,111.60x = 12,481,667.40 × 6,977,418.80
  4. Step 4: Simplify right side
    8,321,111.60x = 87,089,820,772,107.12
  5. Step 5: Solve for x
    x = 87,089,820,772,107.12/8,321,111.60
  6. Step 6: Final answer
    x = 10,466,128.20

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1.5x scale

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.