Home / 8,720,843.70-13,089,041.55-5,122,110.90

Finding the Fourth Proportional to 8,720,843.70, 13,089,041.55 and 5,122,110.90

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Solution

The fourth proportional to 8,720,843.70, 13,089,041.55 and 5,122,110.90 is: 7,687,733.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,720,843.70 : 13,089,041.55 = 5,122,110.90 : x
  2. Step 2: Convert to fraction form
    8,720,843.70/13,089,041.55 = 5,122,110.90/x
  3. Step 3: Cross multiply
    8,720,843.70x = 13,089,041.55 × 5,122,110.90
  4. Step 4: Simplify right side
    8,720,843.70x = 67,043,522,393,807.91
  5. Step 5: Solve for x
    x = 67,043,522,393,807.91/8,720,843.70
  6. Step 6: Final answer
    x = 7,687,733.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.