Home / 7,858,632.51-11,787,949.31-2,178,856.98

Finding the Fourth Proportional to 7,858,632.51, 11,787,949.31 and 2,178,856.98

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Solution

The fourth proportional to 7,858,632.51, 11,787,949.31 and 2,178,856.98 is: 3,268,285.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,858,632.51 : 11,787,949.31 = 2,178,856.98 : x
  2. Step 2: Convert to fraction form
    7,858,632.51/11,787,949.31 = 2,178,856.98/x
  3. Step 3: Cross multiply
    7,858,632.51x = 11,787,949.31 × 2,178,856.98
  4. Step 4: Simplify right side
    7,858,632.51x = 25,684,255,623,085.40
  5. Step 5: Solve for x
    x = 25,684,255,623,085.40/7,858,632.51
  6. Step 6: Final answer
    x = 3,268,285.62

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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.