Home / 13,720,645.47-20,575,736.71-4,620,299.72

Finding the Fourth Proportional to 13,720,645.47, 20,575,736.71 and 4,620,299.72

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Solution

The fourth proportional to 13,720,645.47, 20,575,736.71 and 4,620,299.72 is: 6,928,687.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,720,645.47 : 20,575,736.71 = 4,620,299.72 : x
  2. Step 2: Convert to fraction form
    13,720,645.47/20,575,736.71 = 4,620,299.72/x
  3. Step 3: Cross multiply
    13,720,645.47x = 20,575,736.71 × 4,620,299.72
  4. Step 4: Simplify right side
    13,720,645.47x = 95,066,070,522,736.30
  5. Step 5: Solve for x
    x = 95,066,070,522,736.30/13,720,645.47
  6. Step 6: Final answer
    x = 6,928,687.92

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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.