Home / 7,388,617.40-11,077,021.20-3,125,279.60

Finding the Fourth Proportional to 7,388,617.40, 11,077,021.20 and 3,125,279.60

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Solution

The fourth proportional to 7,388,617.40, 11,077,021.20 and 3,125,279.60 is: 4,685,421.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,388,617.40 : 11,077,021.20 = 3,125,279.60 : x
  2. Step 2: Convert to fraction form
    7,388,617.40/11,077,021.20 = 3,125,279.60/x
  3. Step 3: Cross multiply
    7,388,617.40x = 11,077,021.20 × 3,125,279.60
  4. Step 4: Simplify right side
    7,388,617.40x = 34,618,788,385,127.52
  5. Step 5: Solve for x
    x = 34,618,788,385,127.52/7,388,617.40
  6. Step 6: Final answer
    x = 4,685,421.71

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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.