Home / 13,789,568.43-20,669,984.06-7,715,394.63

Finding the Fourth Proportional to 13,789,568.43, 20,669,984.06 and 7,715,394.63

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Solution

The fourth proportional to 13,789,568.43, 20,669,984.06 and 7,715,394.63 is: 11,565,052.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,789,568.43 : 20,669,984.06 = 7,715,394.63 : x
  2. Step 2: Convert to fraction form
    13,789,568.43/20,669,984.06 = 7,715,394.63/x
  3. Step 3: Cross multiply
    13,789,568.43x = 20,669,984.06 × 7,715,394.63
  4. Step 4: Simplify right side
    13,789,568.43x = 159,477,083,980,132.62
  5. Step 5: Solve for x
    x = 159,477,083,980,132.62/13,789,568.43
  6. Step 6: Final answer
    x = 11,565,052.58

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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.