Finding the Fourth Proportional to 320,436,269.20, 480,654,403.80 and 212,730,893.20
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Solution
The fourth proportional to 320,436,269.20, 480,654,403.80 and 212,730,893.20 is: 319,096,339.80
Step by Step Solution
- Step 1: Write the proportion equation
320,436,269.20 : 480,654,403.80 = 212,730,893.20 : x - Step 2: Convert to fraction form
320,436,269.20/480,654,403.80 = 212,730,893.20/x - Step 3: Cross multiply
320,436,269.20x = 480,654,403.80 × 212,730,893.20 - Step 4: Simplify right side
320,436,269.20x = 102,250,040,640,887,472 - Step 5: Solve for x
x = 102,250,040,640,887,472/320,436,269.20 - Step 6: Final answer
x = 319,096,339.80
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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.