Home / 30,772,833.72-42,465,986.28-17,021,786.64

Finding the Fourth Proportional to 30,772,833.72, 42,465,986.28 and 17,021,786.64

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Solution

The fourth proportional to 30,772,833.72, 42,465,986.28 and 17,021,786.64 is: 23,489,775.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,772,833.72 : 42,465,986.28 = 17,021,786.64 : x
  2. Step 2: Convert to fraction form
    30,772,833.72/42,465,986.28 = 17,021,786.64/x
  3. Step 3: Cross multiply
    30,772,833.72x = 42,465,986.28 × 17,021,786.64
  4. Step 4: Simplify right side
    30,772,833.72x = 722,846,957,915,327.38
  5. Step 5: Solve for x
    x = 722,846,957,915,327.38/30,772,833.72
  6. Step 6: Final answer
    x = 23,489,775.58

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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.