Home / 20,800,030.89-28,704,650.83-11,381,387.34

Finding the Fourth Proportional to 20,800,030.89, 28,704,650.83 and 11,381,387.34

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Solution

The fourth proportional to 20,800,030.89, 28,704,650.83 and 11,381,387.34 is: 15,706,647.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,800,030.89 : 28,704,650.83 = 11,381,387.34 : x
  2. Step 2: Convert to fraction form
    20,800,030.89/28,704,650.83 = 11,381,387.34/x
  3. Step 3: Cross multiply
    20,800,030.89x = 28,704,650.83 × 11,381,387.34
  4. Step 4: Simplify right side
    20,800,030.89x = 326,698,749,505,412.25
  5. Step 5: Solve for x
    x = 326,698,749,505,412.25/20,800,030.89
  6. Step 6: Final answer
    x = 15,706,647.32

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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.