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Finding the Fourth Proportional to 6,642,911.70, 9,964,367.55 and 3,283,679.70

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Solution

The fourth proportional to 6,642,911.70, 9,964,367.55 and 3,283,679.70 is: 4,925,519.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,642,911.70 : 9,964,367.55 = 3,283,679.70 : x
  2. Step 2: Convert to fraction form
    6,642,911.70/9,964,367.55 = 3,283,679.70/x
  3. Step 3: Cross multiply
    6,642,911.70x = 9,964,367.55 × 3,283,679.70
  4. Step 4: Simplify right side
    6,642,911.70x = 32,719,791,447,273.74
  5. Step 5: Solve for x
    x = 32,719,791,447,273.74/6,642,911.70
  6. Step 6: Final answer
    x = 4,925,519.55

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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.