Home / 7,142,797.62-9,857,133.10-3,879,676.07

Finding the Fourth Proportional to 7,142,797.62, 9,857,133.10 and 3,879,676.07

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Solution

The fourth proportional to 7,142,797.62, 9,857,133.10 and 3,879,676.07 is: 5,353,992.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,142,797.62 : 9,857,133.10 = 3,879,676.07 : x
  2. Step 2: Convert to fraction form
    7,142,797.62/9,857,133.10 = 3,879,676.07/x
  3. Step 3: Cross multiply
    7,142,797.62x = 9,857,133.10 × 3,879,676.07
  4. Step 4: Simplify right side
    7,142,797.62x = 38,242,483,399,403.10
  5. Step 5: Solve for x
    x = 38,242,483,399,403.10/7,142,797.62
  6. Step 6: Final answer
    x = 5,353,992.29

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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.