Home / 7,164,072.80-9,886,378.35-3,900,879.73

Finding the Fourth Proportional to 7,164,072.80, 9,886,378.35 and 3,900,879.73

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Solution

The fourth proportional to 7,164,072.80, 9,886,378.35 and 3,900,879.73 is: 5,383,191.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,164,072.80 : 9,886,378.35 = 3,900,879.73 : x
  2. Step 2: Convert to fraction form
    7,164,072.80/9,886,378.35 = 3,900,879.73/x
  3. Step 3: Cross multiply
    7,164,072.80x = 9,886,378.35 × 3,900,879.73
  4. Step 4: Simplify right side
    7,164,072.80x = 38,565,572,864,070.05
  5. Step 5: Solve for x
    x = 38,565,572,864,070.05/7,164,072.80
  6. Step 6: Final answer
    x = 5,383,191.09

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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.