Home / 110,835,611.20-165,969,981.60-81,925,220.80

Finding the Fourth Proportional to 110,835,611.20, 165,969,981.60 and 81,925,220.80

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Solution

The fourth proportional to 110,835,611.20, 165,969,981.60 and 81,925,220.80 is: 122,678,327.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,835,611.20 : 165,969,981.60 = 81,925,220.80 : x
  2. Step 2: Convert to fraction form
    110,835,611.20/165,969,981.60 = 81,925,220.80/x
  3. Step 3: Cross multiply
    110,835,611.20x = 165,969,981.60 × 81,925,220.80
  4. Step 4: Simplify right side
    110,835,611.20x = 13,597,127,388,751,936
  5. Step 5: Solve for x
    x = 13,597,127,388,751,936/110,835,611.20
  6. Step 6: Final answer
    x = 122,678,327.31

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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.