Finding the Fourth Proportional to 54,648,979.68, 81,970,514.64 and 27,721,935.84
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Solution
The fourth proportional to 54,648,979.68, 81,970,514.64 and 27,721,935.84 is: 41,581,404.83
Step by Step Solution
- Step 1: Write the proportion equation
54,648,979.68 : 81,970,514.64 = 27,721,935.84 : x - Step 2: Convert to fraction form
54,648,979.68/81,970,514.64 = 27,721,935.84/x - Step 3: Cross multiply
54,648,979.68x = 81,970,514.64 × 27,721,935.84 - Step 4: Simplify right side
54,648,979.68x = 2,272,381,347,621,860.50 - Step 5: Solve for x
x = 2,272,381,347,621,860.50/54,648,979.68 - Step 6: Final answer
x = 41,581,404.83
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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.