Finding the Fourth Proportional to 12,151,503.16, 16,769,078.66 and 6,924,361.75
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Solution
The fourth proportional to 12,151,503.16, 16,769,078.66 and 6,924,361.75 is: 9,555,621.66
Step by Step Solution
- Step 1: Write the proportion equation
12,151,503.16 : 16,769,078.66 = 6,924,361.75 : x - Step 2: Convert to fraction form
12,151,503.16/16,769,078.66 = 6,924,361.75/x - Step 3: Cross multiply
12,151,503.16x = 16,769,078.66 × 6,924,361.75 - Step 4: Simplify right side
12,151,503.16x = 116,115,166,856,045.25 - Step 5: Solve for x
x = 116,115,166,856,045.25/12,151,503.16 - Step 6: Final answer
x = 9,555,621.66
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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.