Home / 7,128,351.60-10,668,907.80-6,561,481.20

Finding the Fourth Proportional to 7,128,351.60, 10,668,907.80 and 6,561,481.20

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Solution

The fourth proportional to 7,128,351.60, 10,668,907.80 and 6,561,481.20 is: 9,820,480.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128,351.60 : 10,668,907.80 = 6,561,481.20 : x
  2. Step 2: Convert to fraction form
    7,128,351.60/10,668,907.80 = 6,561,481.20/x
  3. Step 3: Cross multiply
    7,128,351.60x = 10,668,907.80 × 6,561,481.20
  4. Step 4: Simplify right side
    7,128,351.60x = 70,003,837,954,233.37
  5. Step 5: Solve for x
    x = 70,003,837,954,233.37/7,128,351.60
  6. Step 6: Final answer
    x = 9,820,480.51

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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.