Finding the Fourth Proportional to 39,343,023.95, 54,293,609.68 and 21,940,468.99
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Solution
The fourth proportional to 39,343,023.95, 54,293,609.68 and 21,940,468.99 is: 30,277,979.17
Step by Step Solution
- Step 1: Write the proportion equation
39,343,023.95 : 54,293,609.68 = 21,940,468.99 : x - Step 2: Convert to fraction form
39,343,023.95/54,293,609.68 = 21,940,468.99/x - Step 3: Cross multiply
39,343,023.95x = 54,293,609.68 × 21,940,468.99 - Step 4: Simplify right side
39,343,023.95x = 1,191,227,259,348,618.75 - Step 5: Solve for x
x = 1,191,227,259,348,618.75/39,343,023.95 - Step 6: Final answer
x = 30,277,979.17
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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.