Home / 110,712,736.80-166,069,105.20-72,492,141.60

Finding the Fourth Proportional to 110,712,736.80, 166,069,105.20 and 72,492,141.60

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Solution

The fourth proportional to 110,712,736.80, 166,069,105.20 and 72,492,141.60 is: 108,738,212.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,712,736.80 : 166,069,105.20 = 72,492,141.60 : x
  2. Step 2: Convert to fraction form
    110,712,736.80/166,069,105.20 = 72,492,141.60/x
  3. Step 3: Cross multiply
    110,712,736.80x = 166,069,105.20 × 72,492,141.60
  4. Step 4: Simplify right side
    110,712,736.80x = 12,038,705,089,543,694
  5. Step 5: Solve for x
    x = 12,038,705,089,543,694/110,712,736.80
  6. Step 6: Final answer
    x = 108,738,212.40

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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.