Home / 20,161,719,556.80-30,233,509,408.80-7,735,920,388.80

Finding the Fourth Proportional to 20,161,719,556.80, 30,233,509,408.80 and 7,735,920,388.80

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Solution

The fourth proportional to 20,161,719,556.80, 30,233,509,408.80 and 7,735,920,388.80 is: 11,600,400,511.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,161,719,556.80 : 30,233,509,408.80 = 7,735,920,388.80 : x
  2. Step 2: Convert to fraction form
    20,161,719,556.80/30,233,509,408.80 = 7,735,920,388.80/x
  3. Step 3: Cross multiply
    20,161,719,556.80x = 30,233,509,408.80 × 7,735,920,388.80
  4. Step 4: Simplify right side
    20,161,719,556.80x = 233,884,021,860,512,563,200
  5. Step 5: Solve for x
    x = 233,884,021,860,512,563,200/20,161,719,556.80
  6. Step 6: Final answer
    x = 11,600,400,511.55

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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.