Home / 171,072,371.20-256,608,556.80-80,205,145.60

Finding the Fourth Proportional to 171,072,371.20, 256,608,556.80 and 80,205,145.60

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Solution

The fourth proportional to 171,072,371.20, 256,608,556.80 and 80,205,145.60 is: 120,307,718.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,072,371.20 : 256,608,556.80 = 80,205,145.60 : x
  2. Step 2: Convert to fraction form
    171,072,371.20/256,608,556.80 = 80,205,145.60/x
  3. Step 3: Cross multiply
    171,072,371.20x = 256,608,556.80 × 80,205,145.60
  4. Step 4: Simplify right side
    171,072,371.20x = 20,581,326,660,349,868
  5. Step 5: Solve for x
    x = 20,581,326,660,349,868/171,072,371.20
  6. Step 6: Final answer
    x = 120,307,718.40

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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.