Home / 8,420,863.20-12,607,675.20-8,184,667.20

Finding the Fourth Proportional to 8,420,863.20, 12,607,675.20 and 8,184,667.20

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Solution

The fourth proportional to 8,420,863.20, 12,607,675.20 and 8,184,667.20 is: 12,254,043.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,420,863.20 : 12,607,675.20 = 8,184,667.20 : x
  2. Step 2: Convert to fraction form
    8,420,863.20/12,607,675.20 = 8,184,667.20/x
  3. Step 3: Cross multiply
    8,420,863.20x = 12,607,675.20 × 8,184,667.20
  4. Step 4: Simplify right side
    8,420,863.20x = 103,189,625,677,693.44
  5. Step 5: Solve for x
    x = 103,189,625,677,693.44/8,420,863.20
  6. Step 6: Final answer
    x = 12,254,043.70

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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.