Home / 15,004,333.52-20,706,001.74-8,128,815.38

Finding the Fourth Proportional to 15,004,333.52, 20,706,001.74 and 8,128,815.38

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Solution

The fourth proportional to 15,004,333.52, 20,706,001.74 and 8,128,815.38 is: 11,217,776.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,004,333.52 : 20,706,001.74 = 8,128,815.38 : x
  2. Step 2: Convert to fraction form
    15,004,333.52/20,706,001.74 = 8,128,815.38/x
  3. Step 3: Cross multiply
    15,004,333.52x = 20,706,001.74 × 8,128,815.38
  4. Step 4: Simplify right side
    15,004,333.52x = 168,315,265,402,418.75
  5. Step 5: Solve for x
    x = 168,315,265,402,418.75/15,004,333.52
  6. Step 6: Final answer
    x = 11,217,776.86

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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.