Finding the Fourth Proportional to 13,514,278.16, 18,651,342.44 and 7,634,160.28
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Solution
The fourth proportional to 13,514,278.16, 18,651,342.44 and 7,634,160.28 is: 10,536,066.81
Step by Step Solution
- Step 1: Write the proportion equation
13,514,278.16 : 18,651,342.44 = 7,634,160.28 : x - Step 2: Convert to fraction form
13,514,278.16/18,651,342.44 = 7,634,160.28/x - Step 3: Cross multiply
13,514,278.16x = 18,651,342.44 × 7,634,160.28 - Step 4: Simplify right side
13,514,278.16x = 142,387,337,596,583.31 - Step 5: Solve for x
x = 142,387,337,596,583.31/13,514,278.16 - Step 6: Final answer
x = 10,536,066.81
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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.