Home / 215,808,087.80-323,040,285.30-209,089,623.80

Finding the Fourth Proportional to 215,808,087.80, 323,040,285.30 and 209,089,623.80

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Solution

The fourth proportional to 215,808,087.80, 323,040,285.30 and 209,089,623.80 is: 312,983,504.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,808,087.80 : 323,040,285.30 = 209,089,623.80 : x
  2. Step 2: Convert to fraction form
    215,808,087.80/323,040,285.30 = 209,089,623.80/x
  3. Step 3: Cross multiply
    215,808,087.80x = 323,040,285.30 × 209,089,623.80
  4. Step 4: Simplify right side
    215,808,087.80x = 67,544,371,725,621,680
  5. Step 5: Solve for x
    x = 67,544,371,725,621,680/215,808,087.80
  6. Step 6: Final answer
    x = 312,983,504.99

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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.