Home / 21,420,172.54-29,559,873.10-11,630,635.66

Finding the Fourth Proportional to 21,420,172.54, 29,559,873.10 and 11,630,635.66

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Solution

The fourth proportional to 21,420,172.54, 29,559,873.10 and 11,630,635.66 is: 16,050,296.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,420,172.54 : 29,559,873.10 = 11,630,635.66 : x
  2. Step 2: Convert to fraction form
    21,420,172.54/29,559,873.10 = 11,630,635.66/x
  3. Step 3: Cross multiply
    21,420,172.54x = 29,559,873.10 × 11,630,635.66
  4. Step 4: Simplify right side
    21,420,172.54x = 343,800,114,078,958.50
  5. Step 5: Solve for x
    x = 343,800,114,078,958.50/21,420,172.54
  6. Step 6: Final answer
    x = 16,050,296.21

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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.