Home / 15,771,405.78-21,764,524.77-8,528,044.50

Finding the Fourth Proportional to 15,771,405.78, 21,764,524.77 and 8,528,044.50

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Solution

The fourth proportional to 15,771,405.78, 21,764,524.77 and 8,528,044.50 is: 11,768,693.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,771,405.78 : 21,764,524.77 = 8,528,044.50 : x
  2. Step 2: Convert to fraction form
    15,771,405.78/21,764,524.77 = 8,528,044.50/x
  3. Step 3: Cross multiply
    15,771,405.78x = 21,764,524.77 × 8,528,044.50
  4. Step 4: Simplify right side
    15,771,405.78x = 185,608,835,759,912.25
  5. Step 5: Solve for x
    x = 185,608,835,759,912.25/15,771,405.78
  6. Step 6: Final answer
    x = 11,768,693.19

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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.