Finding the Fourth Proportional to 13,168,344.54, 18,173,021.42 and 7,366,780.28
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Solution
The fourth proportional to 13,168,344.54, 18,173,021.42 and 7,366,780.28 is: 10,166,551.72
Step by Step Solution
- Step 1: Write the proportion equation
13,168,344.54 : 18,173,021.42 = 7,366,780.28 : x - Step 2: Convert to fraction form
13,168,344.54/18,173,021.42 = 7,366,780.28/x - Step 3: Cross multiply
13,168,344.54x = 18,173,021.42 × 7,366,780.28 - Step 4: Simplify right side
13,168,344.54x = 133,876,655,824,873.61 - Step 5: Solve for x
x = 133,876,655,824,873.61/13,168,344.54 - Step 6: Final answer
x = 10,166,551.72
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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.