Home / 7,119,958.72-9,825,053.34-3,980,019.64

Finding the Fourth Proportional to 7,119,958.72, 9,825,053.34 and 3,980,019.64

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Solution

The fourth proportional to 7,119,958.72, 9,825,053.34 and 3,980,019.64 is: 5,492,153.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,119,958.72 : 9,825,053.34 = 3,980,019.64 : x
  2. Step 2: Convert to fraction form
    7,119,958.72/9,825,053.34 = 3,980,019.64/x
  3. Step 3: Cross multiply
    7,119,958.72x = 9,825,053.34 × 3,980,019.64
  4. Step 4: Simplify right side
    7,119,958.72x = 39,103,905,257,247.60
  5. Step 5: Solve for x
    x = 39,103,905,257,247.60/7,119,958.72
  6. Step 6: Final answer
    x = 5,492,153.37

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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.