Home / 15,771,400.78-21,764,517.87-8,528,039.50

Finding the Fourth Proportional to 15,771,400.78, 21,764,517.87 and 8,528,039.50

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Solution

The fourth proportional to 15,771,400.78, 21,764,517.87 and 8,528,039.50 is: 11,768,686.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,771,400.78 : 21,764,517.87 = 8,528,039.50 : x
  2. Step 2: Convert to fraction form
    15,771,400.78/21,764,517.87 = 8,528,039.50/x
  3. Step 3: Cross multiply
    15,771,400.78x = 21,764,517.87 × 8,528,039.50
  4. Step 4: Simplify right side
    15,771,400.78x = 185,608,668,093,815.88
  5. Step 5: Solve for x
    x = 185,608,668,093,815.88/15,771,400.78
  6. Step 6: Final answer
    x = 11,768,686.29

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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.