Home / 13,203,729.15-19,805,593.73-12,406,567.65

Finding the Fourth Proportional to 13,203,729.15, 19,805,593.73 and 12,406,567.65

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Solution

The fourth proportional to 13,203,729.15, 19,805,593.73 and 12,406,567.65 is: 18,609,851.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,203,729.15 : 19,805,593.73 = 12,406,567.65 : x
  2. Step 2: Convert to fraction form
    13,203,729.15/19,805,593.73 = 12,406,567.65/x
  3. Step 3: Cross multiply
    13,203,729.15x = 19,805,593.73 × 12,406,567.65
  4. Step 4: Simplify right side
    13,203,729.15x = 245,719,438,397,628.03
  5. Step 5: Solve for x
    x = 245,719,438,397,628.03/13,203,729.15
  6. Step 6: Final answer
    x = 18,609,851.48

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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.