Home / 15,771,403.78-21,764,522.01-8,528,042.50

Finding the Fourth Proportional to 15,771,403.78, 21,764,522.01 and 8,528,042.50

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Solution

The fourth proportional to 15,771,403.78, 21,764,522.01 and 8,528,042.50 is: 11,768,690.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,771,403.78 : 21,764,522.01 = 8,528,042.50 : x
  2. Step 2: Convert to fraction form
    15,771,403.78/21,764,522.01 = 8,528,042.50/x
  3. Step 3: Cross multiply
    15,771,403.78x = 21,764,522.01 × 8,528,042.50
  4. Step 4: Simplify right side
    15,771,403.78x = 185,608,768,693,465.44
  5. Step 5: Solve for x
    x = 185,608,768,693,465.44/15,771,403.78
  6. Step 6: Final answer
    x = 11,768,690.43

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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.