Home / 8,421,405.20-12,608,488.20-8,185,209.20

Finding the Fourth Proportional to 8,421,405.20, 12,608,488.20 and 8,185,209.20

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Solution

The fourth proportional to 8,421,405.20, 12,608,488.20 and 8,185,209.20 is: 12,254,856.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,421,405.20 : 12,608,488.20 = 8,185,209.20 : x
  2. Step 2: Convert to fraction form
    8,421,405.20/12,608,488.20 = 8,185,209.20/x
  3. Step 3: Cross multiply
    8,421,405.20x = 12,608,488.20 × 8,185,209.20
  4. Step 4: Simplify right side
    8,421,405.20x = 103,203,113,612,731.44
  5. Step 5: Solve for x
    x = 103,203,113,612,731.44/8,421,405.20
  6. Step 6: Final answer
    x = 12,254,856.66

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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.