Home / 209,952,029.60-314,778,745.20-80,509,623.20

Finding the Fourth Proportional to 209,952,029.60, 314,778,745.20 and 80,509,623.20

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Solution

The fourth proportional to 209,952,029.60, 314,778,745.20 and 80,509,623.20 is: 120,707,183.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,952,029.60 : 314,778,745.20 = 80,509,623.20 : x
  2. Step 2: Convert to fraction form
    209,952,029.60/314,778,745.20 = 80,509,623.20/x
  3. Step 3: Cross multiply
    209,952,029.60x = 314,778,745.20 × 80,509,623.20
  4. Step 4: Simplify right side
    209,952,029.60x = 25,342,718,167,420,808
  5. Step 5: Solve for x
    x = 25,342,718,167,420,808/209,952,029.60
  6. Step 6: Final answer
    x = 120,707,183.52

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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.