Home / 13,821,784.90-20,723,819.78-5,740,338.76

Finding the Fourth Proportional to 13,821,784.90, 20,723,819.78 and 5,740,338.76

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Solution

The fourth proportional to 13,821,784.90, 20,723,819.78 and 5,740,338.76 is: 8,606,829.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,821,784.90 : 20,723,819.78 = 5,740,338.76 : x
  2. Step 2: Convert to fraction form
    13,821,784.90/20,723,819.78 = 5,740,338.76/x
  3. Step 3: Cross multiply
    13,821,784.90x = 20,723,819.78 × 5,740,338.76
  4. Step 4: Simplify right side
    13,821,784.90x = 118,961,745,938,388.67
  5. Step 5: Solve for x
    x = 118,961,745,938,388.67/13,821,784.90
  6. Step 6: Final answer
    x = 8,606,829.49

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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.