Home / 13,941,731.20-20,920,027.20-5,422,345.60

Finding the Fourth Proportional to 13,941,731.20, 20,920,027.20 and 5,422,345.60

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Solution

The fourth proportional to 13,941,731.20, 20,920,027.20 and 5,422,345.60 is: 8,136,408.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,941,731.20 : 20,920,027.20 = 5,422,345.60 : x
  2. Step 2: Convert to fraction form
    13,941,731.20/20,920,027.20 = 5,422,345.60/x
  3. Step 3: Cross multiply
    13,941,731.20x = 20,920,027.20 × 5,422,345.60
  4. Step 4: Simplify right side
    13,941,731.20x = 113,435,617,439,800.31
  5. Step 5: Solve for x
    x = 113,435,617,439,800.31/13,941,731.20
  6. Step 6: Final answer
    x = 8,136,408.30

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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.