Finding the Fourth Proportional to 13,115,468.48, 18,093,169.32 and 8,530,116.80
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Solution
The fourth proportional to 13,115,468.48, 18,093,169.32 and 8,530,116.80 is: 11,767,543.63
Step by Step Solution
- Step 1: Write the proportion equation
13,115,468.48 : 18,093,169.32 = 8,530,116.80 : x - Step 2: Convert to fraction form
13,115,468.48/18,093,169.32 = 8,530,116.80/x - Step 3: Cross multiply
13,115,468.48x = 18,093,169.32 × 8,530,116.80 - Step 4: Simplify right side
13,115,468.48x = 154,336,847,581,776.59 - Step 5: Solve for x
x = 154,336,847,581,776.59/13,115,468.48 - Step 6: Final answer
x = 11,767,543.63
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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.