Home / 20,950,113.55-28,907,825.60-11,780,985.55

Finding the Fourth Proportional to 20,950,113.55, 28,907,825.60 and 11,780,985.55

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Solution

The fourth proportional to 20,950,113.55, 28,907,825.60 and 11,780,985.55 is: 16,255,886.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,950,113.55 : 28,907,825.60 = 11,780,985.55 : x
  2. Step 2: Convert to fraction form
    20,950,113.55/28,907,825.60 = 11,780,985.55/x
  3. Step 3: Cross multiply
    20,950,113.55x = 28,907,825.60 × 11,780,985.55
  4. Step 4: Simplify right side
    20,950,113.55x = 340,562,675,616,615.19
  5. Step 5: Solve for x
    x = 340,562,675,616,615.19/20,950,113.55
  6. Step 6: Final answer
    x = 16,255,886.86

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.