Finding the Fourth Proportional to 13,582,626.29, 18,742,323.02 and 9,181,926.99
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Solution
The fourth proportional to 13,582,626.29, 18,742,323.02 and 9,181,926.99 is: 12,669,909.18
Step by Step Solution
- Step 1: Write the proportion equation
13,582,626.29 : 18,742,323.02 = 9,181,926.99 : x - Step 2: Convert to fraction form
13,582,626.29/18,742,323.02 = 9,181,926.99/x - Step 3: Cross multiply
13,582,626.29x = 18,742,323.02 × 9,181,926.99 - Step 4: Simplify right side
13,582,626.29x = 172,090,641,598,375 - Step 5: Solve for x
x = 172,090,641,598,375/13,582,626.29 - Step 6: Final answer
x = 12,669,909.18
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.