Home / 15,272,945.64-21,077,103.33-9,312,701.78

Finding the Fourth Proportional to 15,272,945.64, 21,077,103.33 and 9,312,701.78

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Solution

The fourth proportional to 15,272,945.64, 21,077,103.33 and 9,312,701.78 is: 12,851,795.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,272,945.64 : 21,077,103.33 = 9,312,701.78 : x
  2. Step 2: Convert to fraction form
    15,272,945.64/21,077,103.33 = 9,312,701.78/x
  3. Step 3: Cross multiply
    15,272,945.64x = 21,077,103.33 × 9,312,701.78
  4. Step 4: Simplify right side
    15,272,945.64x = 196,284,777,593,149.41
  5. Step 5: Solve for x
    x = 196,284,777,593,149.41/15,272,945.64
  6. Step 6: Final answer
    x = 12,851,795.73

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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.