Finding the Fourth Proportional to 13,287,120.86, 18,336,226.62 and 7,175,549.36
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Solution
The fourth proportional to 13,287,120.86, 18,336,226.62 and 7,175,549.36 is: 9,902,258.02
Step by Step Solution
- Step 1: Write the proportion equation
13,287,120.86 : 18,336,226.62 = 7,175,549.36 : x - Step 2: Convert to fraction form
13,287,120.86/18,336,226.62 = 7,175,549.36/x - Step 3: Cross multiply
13,287,120.86x = 18,336,226.62 × 7,175,549.36 - Step 4: Simplify right side
13,287,120.86x = 131,572,499,096,274.84 - Step 5: Solve for x
x = 131,572,499,096,274.84/13,287,120.86 - Step 6: Final answer
x = 9,902,258.02
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1.5x scale
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.