Home / 6,486,665.10-9,729,997.65-3,121,212.30

Finding the Fourth Proportional to 6,486,665.10, 9,729,997.65 and 3,121,212.30

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Solution

The fourth proportional to 6,486,665.10, 9,729,997.65 and 3,121,212.30 is: 4,681,818.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,486,665.10 : 9,729,997.65 = 3,121,212.30 : x
  2. Step 2: Convert to fraction form
    6,486,665.10/9,729,997.65 = 3,121,212.30/x
  3. Step 3: Cross multiply
    6,486,665.10x = 9,729,997.65 × 3,121,212.30
  4. Step 4: Simplify right side
    6,486,665.10x = 30,369,388,344,151.09
  5. Step 5: Solve for x
    x = 30,369,388,344,151.09/6,486,665.10
  6. Step 6: Final answer
    x = 4,681,818.45

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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.