Home / 12,484,828.20-18,706,247.10-8,222,802.60

Finding the Fourth Proportional to 12,484,828.20, 18,706,247.10 and 8,222,802.60

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Solution

The fourth proportional to 12,484,828.20, 18,706,247.10 and 8,222,802.60 is: 12,320,375.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,484,828.20 : 18,706,247.10 = 8,222,802.60 : x
  2. Step 2: Convert to fraction form
    12,484,828.20/18,706,247.10 = 8,222,802.60/x
  3. Step 3: Cross multiply
    12,484,828.20x = 18,706,247.10 × 8,222,802.60
  4. Step 4: Simplify right side
    12,484,828.20x = 153,817,777,290,122.47
  5. Step 5: Solve for x
    x = 153,817,777,290,122.47/12,484,828.20
  6. Step 6: Final answer
    x = 12,320,375.97

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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.