Finding the Fourth Proportional to 13,149,347.49, 18,146,486.97 and 7,348,142.88
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Solution
The fourth proportional to 13,149,347.49, 18,146,486.97 and 7,348,142.88 is: 10,140,653.68
Step by Step Solution
- Step 1: Write the proportion equation
13,149,347.49 : 18,146,486.97 = 7,348,142.88 : x - Step 2: Convert to fraction form
13,149,347.49/18,146,486.97 = 7,348,142.88/x - Step 3: Cross multiply
13,149,347.49x = 18,146,486.97 × 7,348,142.88 - Step 4: Simplify right side
13,149,347.49x = 133,342,979,025,618.27 - Step 5: Solve for x
x = 133,342,979,025,618.27/13,149,347.49 - Step 6: Final answer
x = 10,140,653.68
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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.