Home / 72,659,362.60-109,010,039.10-21,542,611.60

Finding the Fourth Proportional to 72,659,362.60, 109,010,039.10 and 21,542,611.60

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Solution

The fourth proportional to 72,659,362.60, 109,010,039.10 and 21,542,611.60 is: 32,320,142.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,659,362.60 : 109,010,039.10 = 21,542,611.60 : x
  2. Step 2: Convert to fraction form
    72,659,362.60/109,010,039.10 = 21,542,611.60/x
  3. Step 3: Cross multiply
    72,659,362.60x = 109,010,039.10 × 21,542,611.60
  4. Step 4: Simplify right side
    72,659,362.60x = 2,348,360,932,832,113.50
  5. Step 5: Solve for x
    x = 2,348,360,932,832,113.50/72,659,362.60
  6. Step 6: Final answer
    x = 32,320,142.22

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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.