Home / 9,319,680.64-12,860,745.60-5,189,924.80

Finding the Fourth Proportional to 9,319,680.64, 12,860,745.60 and 5,189,924.80

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Solution

The fourth proportional to 9,319,680.64, 12,860,745.60 and 5,189,924.80 is: 7,161,865.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,319,680.64 : 12,860,745.60 = 5,189,924.80 : x
  2. Step 2: Convert to fraction form
    9,319,680.64/12,860,745.60 = 5,189,924.80/x
  3. Step 3: Cross multiply
    9,319,680.64x = 12,860,745.60 × 5,189,924.80
  4. Step 4: Simplify right side
    9,319,680.64x = 66,746,302,535,930.88
  5. Step 5: Solve for x
    x = 66,746,302,535,930.88/9,319,680.64
  6. Step 6: Final answer
    x = 7,161,865.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.