Finding the Fourth Proportional to 386,244,620.10, 579,366,930.15 and 343,918,296.90
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Solution
The fourth proportional to 386,244,620.10, 579,366,930.15 and 343,918,296.90 is: 515,877,445.35
Step by Step Solution
- Step 1: Write the proportion equation
386,244,620.10 : 579,366,930.15 = 343,918,296.90 : x - Step 2: Convert to fraction form
386,244,620.10/579,366,930.15 = 343,918,296.90/x - Step 3: Cross multiply
386,244,620.10x = 579,366,930.15 × 343,918,296.90 - Step 4: Simplify right side
386,244,620.10x = 199,254,887,897,369,248 - Step 5: Solve for x
x = 199,254,887,897,369,248/386,244,620.10 - Step 6: Final answer
x = 515,877,445.35
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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.