Home / 7,131,854.88-10,697,388.54-5,214,730.68

Finding the Fourth Proportional to 7,131,854.88, 10,697,388.54 and 5,214,730.68

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Solution

The fourth proportional to 7,131,854.88, 10,697,388.54 and 5,214,730.68 is: 7,821,808.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,131,854.88 : 10,697,388.54 = 5,214,730.68 : x
  2. Step 2: Convert to fraction form
    7,131,854.88/10,697,388.54 = 5,214,730.68/x
  3. Step 3: Cross multiply
    7,131,854.88x = 10,697,388.54 × 5,214,730.68
  4. Step 4: Simplify right side
    7,131,854.88x = 55,784,000,215,418.40
  5. Step 5: Solve for x
    x = 55,784,000,215,418.40/7,131,854.88
  6. Step 6: Final answer
    x = 7,821,808.09

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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.