Home / 7,118,067.78-10,678,921.74-2,069,378.28

Finding the Fourth Proportional to 7,118,067.78, 10,678,921.74 and 2,069,378.28

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Solution

The fourth proportional to 7,118,067.78, 10,678,921.74 and 2,069,378.28 is: 3,104,596.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,118,067.78 : 10,678,921.74 = 2,069,378.28 : x
  2. Step 2: Convert to fraction form
    7,118,067.78/10,678,921.74 = 2,069,378.28/x
  3. Step 3: Cross multiply
    7,118,067.78x = 10,678,921.74 × 2,069,378.28
  4. Step 4: Simplify right side
    7,118,067.78x = 22,098,728,702,575.81
  5. Step 5: Solve for x
    x = 22,098,728,702,575.81/7,118,067.78
  6. Step 6: Final answer
    x = 3,104,596.55

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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.