Home / 13,299,394.47-19,920,221.88-8,166,243.03

Finding the Fourth Proportional to 13,299,394.47, 19,920,221.88 and 8,166,243.03

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Solution

The fourth proportional to 13,299,394.47, 19,920,221.88 and 8,166,243.03 is: 12,231,637.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,299,394.47 : 19,920,221.88 = 8,166,243.03 : x
  2. Step 2: Convert to fraction form
    13,299,394.47/19,920,221.88 = 8,166,243.03/x
  3. Step 3: Cross multiply
    13,299,394.47x = 19,920,221.88 × 8,166,243.03
  4. Step 4: Simplify right side
    13,299,394.47x = 162,673,372,984,002.38
  5. Step 5: Solve for x
    x = 162,673,372,984,002.38/13,299,394.47
  6. Step 6: Final answer
    x = 12,231,637.57

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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.