Home / 11,500,556.80-15,875,869.44-7,428,161.92

Finding the Fourth Proportional to 11,500,556.80, 15,875,869.44 and 7,428,161.92

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Solution

The fourth proportional to 11,500,556.80, 15,875,869.44 and 7,428,161.92 is: 10,254,158.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,500,556.80 : 15,875,869.44 = 7,428,161.92 : x
  2. Step 2: Convert to fraction form
    11,500,556.80/15,875,869.44 = 7,428,161.92/x
  3. Step 3: Cross multiply
    11,500,556.80x = 15,875,869.44 × 7,428,161.92
  4. Step 4: Simplify right side
    11,500,556.80x = 117,928,528,821,099.72
  5. Step 5: Solve for x
    x = 117,928,528,821,099.72/11,500,556.80
  6. Step 6: Final answer
    x = 10,254,158.20

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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.