Home / 281,010,216.60-421,555,478.22-86,938,198.56

Finding the Fourth Proportional to 281,010,216.60, 421,555,478.22 and 86,938,198.56

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Solution

The fourth proportional to 281,010,216.60, 421,555,478.22 and 86,938,198.56 is: 130,419,720.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,010,216.60 : 421,555,478.22 = 86,938,198.56 : x
  2. Step 2: Convert to fraction form
    281,010,216.60/421,555,478.22 = 86,938,198.56/x
  3. Step 3: Cross multiply
    281,010,216.60x = 421,555,478.22 × 86,938,198.56
  4. Step 4: Simplify right side
    281,010,216.60x = 36,649,273,869,546,120
  5. Step 5: Solve for x
    x = 36,649,273,869,546,120/281,010,216.60
  6. Step 6: Final answer
    x = 130,419,720.37

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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.