Finding the Fourth Proportional to 13,176,067.80, 19,764,101.70 and 5,089,416.60
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Solution
The fourth proportional to 13,176,067.80, 19,764,101.70 and 5,089,416.60 is: 7,634,124.90
Step by Step Solution
- Step 1: Write the proportion equation
13,176,067.80 : 19,764,101.70 = 5,089,416.60 : x - Step 2: Convert to fraction form
13,176,067.80/19,764,101.70 = 5,089,416.60/x - Step 3: Cross multiply
13,176,067.80x = 19,764,101.70 × 5,089,416.60 - Step 4: Simplify right side
13,176,067.80x = 100,587,747,276,068.20 - Step 5: Solve for x
x = 100,587,747,276,068.20/13,176,067.80 - Step 6: Final answer
x = 7,634,124.90
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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.