Home / 21,390,559.72-29,522,745.65-12,693,527.75

Finding the Fourth Proportional to 21,390,559.72, 29,522,745.65 and 12,693,527.75

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Solution

The fourth proportional to 21,390,559.72, 29,522,745.65 and 12,693,527.75 is: 17,519,307.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,390,559.72 : 29,522,745.65 = 12,693,527.75 : x
  2. Step 2: Convert to fraction form
    21,390,559.72/29,522,745.65 = 12,693,527.75/x
  3. Step 3: Cross multiply
    21,390,559.72x = 29,522,745.65 × 12,693,527.75
  4. Step 4: Simplify right side
    21,390,559.72x = 374,747,791,270,007.44
  5. Step 5: Solve for x
    x = 374,747,791,270,007.44/21,390,559.72
  6. Step 6: Final answer
    x = 17,519,307.41

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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.