Home / 15,211,729.69-20,992,205.41-8,242,401.74

Finding the Fourth Proportional to 15,211,729.69, 20,992,205.41 and 8,242,401.74

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Solution

The fourth proportional to 15,211,729.69, 20,992,205.41 and 8,242,401.74 is: 11,374,524.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,211,729.69 : 20,992,205.41 = 8,242,401.74 : x
  2. Step 2: Convert to fraction form
    15,211,729.69/20,992,205.41 = 8,242,401.74/x
  3. Step 3: Cross multiply
    15,211,729.69x = 20,992,205.41 × 8,242,401.74
  4. Step 4: Simplify right side
    15,211,729.69x = 173,026,190,272,254.38
  5. Step 5: Solve for x
    x = 173,026,190,272,254.38/15,211,729.69
  6. Step 6: Final answer
    x = 11,374,524.39

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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.