Home / 7,728,621.85-10,665,081.84-4,290,641.44

Finding the Fourth Proportional to 7,728,621.85, 10,665,081.84 and 4,290,641.44

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Solution

The fourth proportional to 7,728,621.85, 10,665,081.84 and 4,290,641.44 is: 5,920,854.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,728,621.85 : 10,665,081.84 = 4,290,641.44 : x
  2. Step 2: Convert to fraction form
    7,728,621.85/10,665,081.84 = 4,290,641.44/x
  3. Step 3: Cross multiply
    7,728,621.85x = 10,665,081.84 × 4,290,641.44
  4. Step 4: Simplify right side
    7,728,621.85x = 45,760,042,103,695.45
  5. Step 5: Solve for x
    x = 45,760,042,103,695.45/7,728,621.85
  6. Step 6: Final answer
    x = 5,920,854.07

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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.