Home / 7,152,608.36-9,870,716.76-3,889,487.72

Finding the Fourth Proportional to 7,152,608.36, 9,870,716.76 and 3,889,487.72

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Solution

The fourth proportional to 7,152,608.36, 9,870,716.76 and 3,889,487.72 is: 5,367,556.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,152,608.36 : 9,870,716.76 = 3,889,487.72 : x
  2. Step 2: Convert to fraction form
    7,152,608.36/9,870,716.76 = 3,889,487.72/x
  3. Step 3: Cross multiply
    7,152,608.36x = 9,870,716.76 × 3,889,487.72
  4. Step 4: Simplify right side
    7,152,608.36x = 38,392,031,625,618.19
  5. Step 5: Solve for x
    x = 38,392,031,625,618.19/7,152,608.36
  6. Step 6: Final answer
    x = 5,367,556.80

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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.