Home / 12,629,408.93-17,428,587.79-6,971,505.53

Finding the Fourth Proportional to 12,629,408.93, 17,428,587.79 and 6,971,505.53

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Solution

The fourth proportional to 12,629,408.93, 17,428,587.79 and 6,971,505.53 is: 9,620,679.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,629,408.93 : 17,428,587.79 = 6,971,505.53 : x
  2. Step 2: Convert to fraction form
    12,629,408.93/17,428,587.79 = 6,971,505.53/x
  3. Step 3: Cross multiply
    12,629,408.93x = 17,428,587.79 × 6,971,505.53
  4. Step 4: Simplify right side
    12,629,408.93x = 121,503,496,158,075.48
  5. Step 5: Solve for x
    x = 121,503,496,158,075.48/12,629,408.93
  6. Step 6: Final answer
    x = 9,620,679.55

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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.