Home / 12,468,621.60-18,671,439.60-8,185,600.80

Finding the Fourth Proportional to 12,468,621.60, 18,671,439.60 and 8,185,600.80

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Solution

The fourth proportional to 12,468,621.60, 18,671,439.60 and 8,185,600.80 is: 12,257,726.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,468,621.60 : 18,671,439.60 = 8,185,600.80 : x
  2. Step 2: Convert to fraction form
    12,468,621.60/18,671,439.60 = 8,185,600.80/x
  3. Step 3: Cross multiply
    12,468,621.60x = 18,671,439.60 × 8,185,600.80
  4. Step 4: Simplify right side
    12,468,621.60x = 152,836,950,926,911.69
  5. Step 5: Solve for x
    x = 152,836,950,926,911.69/12,468,621.60
  6. Step 6: Final answer
    x = 12,257,726.30

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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.