Finding the Fourth Proportional to 13,268,717, 18,316,479.30 and 8,920,325.36
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Solution
The fourth proportional to 13,268,717, 18,316,479.30 and 8,920,325.36 is: 12,313,847.28
Step by Step Solution
- Step 1: Write the proportion equation
13,268,717 : 18,316,479.30 = 8,920,325.36 : x - Step 2: Convert to fraction form
13,268,717/18,316,479.30 = 8,920,325.36/x - Step 3: Cross multiply
13,268,717x = 18,316,479.30 × 8,920,325.36 - Step 4: Simplify right side
13,268,717x = 163,388,954,805,705.03 - Step 5: Solve for x
x = 163,388,954,805,705.03/13,268,717 - Step 6: Final answer
x = 12,313,847.28
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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.