Home / 15,004,452.42-20,706,243.74-8,128,934.48

Finding the Fourth Proportional to 15,004,452.42, 20,706,243.74 and 8,128,934.48

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Solution

The fourth proportional to 15,004,452.42, 20,706,243.74 and 8,128,934.48 is: 11,217,983.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,004,452.42 : 20,706,243.74 = 8,128,934.48 : x
  2. Step 2: Convert to fraction form
    15,004,452.42/20,706,243.74 = 8,128,934.48/x
  3. Step 3: Cross multiply
    15,004,452.42x = 20,706,243.74 × 8,128,934.48
  4. Step 4: Simplify right side
    15,004,452.42x = 168,319,698,730,974.59
  5. Step 5: Solve for x
    x = 168,319,698,730,974.59/15,004,452.42
  6. Step 6: Final answer
    x = 11,217,983.44

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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.