Home / 100,399,296-150,662,651.40-42,891,999.84

Finding the Fourth Proportional to 100,399,296, 150,662,651.40 and 42,891,999.84

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Solution

The fourth proportional to 100,399,296, 150,662,651.40 and 42,891,999.84 is: 64,365,216.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,399,296 : 150,662,651.40 = 42,891,999.84 : x
  2. Step 2: Convert to fraction form
    100,399,296/150,662,651.40 = 42,891,999.84/x
  3. Step 3: Cross multiply
    100,399,296x = 150,662,651.40 × 42,891,999.84
  4. Step 4: Simplify right side
    100,399,296x = 6,462,222,419,742,777
  5. Step 5: Solve for x
    x = 6,462,222,419,742,777/100,399,296
  6. Step 6: Final answer
    x = 64,365,216.46

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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.