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Finding the Fourth Proportional to 6,642,763.90, 9,964,145.85 and 4,375,282.30

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Solution

The fourth proportional to 6,642,763.90, 9,964,145.85 and 4,375,282.30 is: 6,562,923.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,642,763.90 : 9,964,145.85 = 4,375,282.30 : x
  2. Step 2: Convert to fraction form
    6,642,763.90/9,964,145.85 = 4,375,282.30/x
  3. Step 3: Cross multiply
    6,642,763.90x = 9,964,145.85 × 4,375,282.30
  4. Step 4: Simplify right side
    6,642,763.90x = 43,595,950,972,123.45
  5. Step 5: Solve for x
    x = 43,595,950,972,123.45/6,642,763.90
  6. Step 6: Final answer
    x = 6,562,923.45

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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.