Home / 20,556,629.26-30,822,991.93-7,778,119.48

Finding the Fourth Proportional to 20,556,629.26, 30,822,991.93 and 7,778,119.48

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Solution

The fourth proportional to 20,556,629.26, 30,822,991.93 and 7,778,119.48 is: 11,662,656.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,556,629.26 : 30,822,991.93 = 7,778,119.48 : x
  2. Step 2: Convert to fraction form
    20,556,629.26/30,822,991.93 = 7,778,119.48/x
  3. Step 3: Cross multiply
    20,556,629.26x = 30,822,991.93 × 7,778,119.48
  4. Step 4: Simplify right side
    20,556,629.26x = 239,744,913,895,280.97
  5. Step 5: Solve for x
    x = 239,744,913,895,280.97/20,556,629.26
  6. Step 6: Final answer
    x = 11,662,656.89

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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.