Finding the Fourth Proportional to 54,086,815.58, 81,129,514.71 and 13,146,135.79
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Solution
The fourth proportional to 54,086,815.58, 81,129,514.71 and 13,146,135.79 is: 19,719,031.44
Step by Step Solution
- Step 1: Write the proportion equation
54,086,815.58 : 81,129,514.71 = 13,146,135.79 : x - Step 2: Convert to fraction form
54,086,815.58/81,129,514.71 = 13,146,135.79/x - Step 3: Cross multiply
54,086,815.58x = 81,129,514.71 × 13,146,135.79 - Step 4: Simplify right side
54,086,815.58x = 1,066,539,616,953,054.62 - Step 5: Solve for x
x = 1,066,539,616,953,054.62/54,086,815.58 - Step 6: Final answer
x = 19,719,031.44
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.