Finding the Fourth Proportional to 13,321,641.18, 18,384,310.60 and 8,164,006.68
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Solution
The fourth proportional to 13,321,641.18, 18,384,310.60 and 8,164,006.68 is: 11,266,602.40
Step by Step Solution
- Step 1: Write the proportion equation
13,321,641.18 : 18,384,310.60 = 8,164,006.68 : x - Step 2: Convert to fraction form
13,321,641.18/18,384,310.60 = 8,164,006.68/x - Step 3: Cross multiply
13,321,641.18x = 18,384,310.60 × 8,164,006.68 - Step 4: Simplify right side
13,321,641.18x = 150,089,634,545,594.81 - Step 5: Solve for x
x = 150,089,634,545,594.81/13,321,641.18 - Step 6: Final answer
x = 11,266,602.40
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.