Home / 7,149,857.22-9,866,732.79-3,886,477.80

Finding the Fourth Proportional to 7,149,857.22, 9,866,732.79 and 3,886,477.80

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Solution

The fourth proportional to 7,149,857.22, 9,866,732.79 and 3,886,477.80 is: 5,363,301.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,149,857.22 : 9,866,732.79 = 3,886,477.80 : x
  2. Step 2: Convert to fraction form
    7,149,857.22/9,866,732.79 = 3,886,477.80/x
  3. Step 3: Cross multiply
    7,149,857.22x = 9,866,732.79 × 3,886,477.80
  4. Step 4: Simplify right side
    7,149,857.22x = 38,346,837,946,867.05
  5. Step 5: Solve for x
    x = 38,346,837,946,867.05/7,149,857.22
  6. Step 6: Final answer
    x = 5,363,301.22

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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.