Home / 13,973,129.40-20,959,694.10-8,290,428.60

Finding the Fourth Proportional to 13,973,129.40, 20,959,694.10 and 8,290,428.60

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Solution

The fourth proportional to 13,973,129.40, 20,959,694.10 and 8,290,428.60 is: 12,435,642.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,973,129.40 : 20,959,694.10 = 8,290,428.60 : x
  2. Step 2: Convert to fraction form
    13,973,129.40/20,959,694.10 = 8,290,428.60/x
  3. Step 3: Cross multiply
    13,973,129.40x = 20,959,694.10 × 8,290,428.60
  4. Step 4: Simplify right side
    13,973,129.40x = 173,764,847,413,891.25
  5. Step 5: Solve for x
    x = 173,764,847,413,891.25/13,973,129.40
  6. Step 6: Final answer
    x = 12,435,642.90

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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.