Finding the Fourth Proportional to 13,451,979.68, 20,181,172.62 and 4,354,078.94
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Solution
The fourth proportional to 13,451,979.68, 20,181,172.62 and 4,354,078.94 is: 6,532,155.17
Step by Step Solution
- Step 1: Write the proportion equation
13,451,979.68 : 20,181,172.62 = 4,354,078.94 : x - Step 2: Convert to fraction form
13,451,979.68/20,181,172.62 = 4,354,078.94/x - Step 3: Cross multiply
13,451,979.68x = 20,181,172.62 × 4,354,078.94 - Step 4: Simplify right side
13,451,979.68x = 87,870,418,588,340.75 - Step 5: Solve for x
x = 87,870,418,588,340.75/13,451,979.68 - Step 6: Final answer
x = 6,532,155.17
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.