Home / 20,409,012,055.44-28,164,436,407.72-11,021,638,231.44

Finding the Fourth Proportional to 20,409,012,055.44, 28,164,436,407.72 and 11,021,638,231.44

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Solution

The fourth proportional to 20,409,012,055.44, 28,164,436,407.72 and 11,021,638,231.44 is: 15,209,860,635.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,409,012,055.44 : 28,164,436,407.72 = 11,021,638,231.44 : x
  2. Step 2: Convert to fraction form
    20,409,012,055.44/28,164,436,407.72 = 11,021,638,231.44/x
  3. Step 3: Cross multiply
    20,409,012,055.44x = 28,164,436,407.72 × 11,021,638,231.44
  4. Step 4: Simplify right side
    20,409,012,055.44x = 310,418,229,078,287,450,112
  5. Step 5: Solve for x
    x = 310,418,229,078,287,450,112/20,409,012,055.44
  6. Step 6: Final answer
    x = 15,209,860,635.83

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1.5x scale

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.