Home / 12,839,594.72-17,716,748.45-7,807,777.22

Finding the Fourth Proportional to 12,839,594.72, 17,716,748.45 and 7,807,777.22

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Solution

The fourth proportional to 12,839,594.72, 17,716,748.45 and 7,807,777.22 is: 10,773,581.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,839,594.72 : 17,716,748.45 = 7,807,777.22 : x
  2. Step 2: Convert to fraction form
    12,839,594.72/17,716,748.45 = 7,807,777.22/x
  3. Step 3: Cross multiply
    12,839,594.72x = 17,716,748.45 × 7,807,777.22
  4. Step 4: Simplify right side
    12,839,594.72x = 138,328,424,832,757.69
  5. Step 5: Solve for x
    x = 138,328,424,832,757.69/12,839,594.72
  6. Step 6: Final answer
    x = 10,773,581.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.