Home / 20,850,541.86-28,773,981.84-11,910,836.01

Finding the Fourth Proportional to 20,850,541.86, 28,773,981.84 and 11,910,836.01

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Solution

The fourth proportional to 20,850,541.86, 28,773,981.84 and 11,910,836.01 is: 16,437,087.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,850,541.86 : 28,773,981.84 = 11,910,836.01 : x
  2. Step 2: Convert to fraction form
    20,850,541.86/28,773,981.84 = 11,910,836.01/x
  3. Step 3: Cross multiply
    20,850,541.86x = 28,773,981.84 × 11,910,836.01
  4. Step 4: Simplify right side
    20,850,541.86x = 342,722,179,050,958.06
  5. Step 5: Solve for x
    x = 342,722,179,050,958.06/20,850,541.86
  6. Step 6: Final answer
    x = 16,437,087.41

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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.