Home / 20,392,272.86-28,142,079.03-11,099,393.73

Finding the Fourth Proportional to 20,392,272.86, 28,142,079.03 and 11,099,393.73

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Solution

The fourth proportional to 20,392,272.86, 28,142,079.03 and 11,099,393.73 is: 15,317,567.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,392,272.86 : 28,142,079.03 = 11,099,393.73 : x
  2. Step 2: Convert to fraction form
    20,392,272.86/28,142,079.03 = 11,099,393.73/x
  3. Step 3: Cross multiply
    20,392,272.86x = 28,142,079.03 × 11,099,393.73
  4. Step 4: Simplify right side
    20,392,272.86x = 312,360,015,534,746.50
  5. Step 5: Solve for x
    x = 312,360,015,534,746.50/20,392,272.86
  6. Step 6: Final answer
    x = 15,317,567.48

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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.