Home / 215,808,074.80-323,040,265.80-209,089,610.80

Finding the Fourth Proportional to 215,808,074.80, 323,040,265.80 and 209,089,610.80

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Solution

The fourth proportional to 215,808,074.80, 323,040,265.80 and 209,089,610.80 is: 312,983,485.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,808,074.80 : 323,040,265.80 = 209,089,610.80 : x
  2. Step 2: Convert to fraction form
    215,808,074.80/323,040,265.80 = 209,089,610.80/x
  3. Step 3: Cross multiply
    215,808,074.80x = 323,040,265.80 × 209,089,610.80
  4. Step 4: Simplify right side
    215,808,074.80x = 67,544,363,448,850,560
  5. Step 5: Solve for x
    x = 67,544,363,448,850,560/215,808,074.80
  6. Step 6: Final answer
    x = 312,983,485.49

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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.