Finding the Fourth Proportional to 382,884,717.22, 528,625,275.17 and 312,488,492.63
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Solution
The fourth proportional to 382,884,717.22, 528,625,275.17 and 312,488,492.63 is: 431,433,556.82
Step by Step Solution
- Step 1: Write the proportion equation
382,884,717.22 : 528,625,275.17 = 312,488,492.63 : x - Step 2: Convert to fraction form
382,884,717.22/528,625,275.17 = 312,488,492.63/x - Step 3: Cross multiply
382,884,717.22x = 528,625,275.17 × 312,488,492.63 - Step 4: Simplify right side
382,884,717.22x = 165,189,315,399,786,720 - Step 5: Solve for x
x = 165,189,315,399,786,720/382,884,717.22 - Step 6: Final answer
x = 431,433,556.82
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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.