Home / 43,158,757.05-64,681,448.13-20,446,149.69

Finding the Fourth Proportional to 43,158,757.05, 64,681,448.13 and 20,446,149.69

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Solution

The fourth proportional to 43,158,757.05, 64,681,448.13 and 20,446,149.69 is: 30,642,369.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,158,757.05 : 64,681,448.13 = 20,446,149.69 : x
  2. Step 2: Convert to fraction form
    43,158,757.05/64,681,448.13 = 20,446,149.69/x
  3. Step 3: Cross multiply
    43,158,757.05x = 64,681,448.13 × 20,446,149.69
  4. Step 4: Simplify right side
    43,158,757.05x = 1,322,486,570,631,950.75
  5. Step 5: Solve for x
    x = 1,322,486,570,631,950.75/43,158,757.05
  6. Step 6: Final answer
    x = 30,642,369.27

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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.