Home / 13,771,805.20-20,639,993.10-8,374,726.60

Finding the Fourth Proportional to 13,771,805.20, 20,639,993.10 and 8,374,726.60

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Solution

The fourth proportional to 13,771,805.20, 20,639,993.10 and 8,374,726.60 is: 12,551,317.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,771,805.20 : 20,639,993.10 = 8,374,726.60 : x
  2. Step 2: Convert to fraction form
    13,771,805.20/20,639,993.10 = 8,374,726.60/x
  3. Step 3: Cross multiply
    13,771,805.20x = 20,639,993.10 × 8,374,726.60
  4. Step 4: Simplify right side
    13,771,805.20x = 172,854,299,238,386.47
  5. Step 5: Solve for x
    x = 172,854,299,238,386.47/13,771,805.20
  6. Step 6: Final answer
    x = 12,551,317.47

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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.