Home / 217,277,138.40-325,803,733.20-80,892,319.20

Finding the Fourth Proportional to 217,277,138.40, 325,803,733.20 and 80,892,319.20

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Solution

The fourth proportional to 217,277,138.40, 325,803,733.20 and 80,892,319.20 is: 121,296,790.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,277,138.40 : 325,803,733.20 = 80,892,319.20 : x
  2. Step 2: Convert to fraction form
    217,277,138.40/325,803,733.20 = 80,892,319.20/x
  3. Step 3: Cross multiply
    217,277,138.40x = 325,803,733.20 × 80,892,319.20
  4. Step 4: Simplify right side
    217,277,138.40x = 26,355,019,582,566,036
  5. Step 5: Solve for x
    x = 26,355,019,582,566,036/217,277,138.40
  6. Step 6: Final answer
    x = 121,296,790.71

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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.