Finding the Fourth Proportional to 215,012,978.82, 296,743,101.08 and 122,207,436.99
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Solution
The fourth proportional to 215,012,978.82, 296,743,101.08 and 122,207,436.99 is: 168,660,580.52
Step by Step Solution
- Step 1: Write the proportion equation
215,012,978.82 : 296,743,101.08 = 122,207,436.99 : x - Step 2: Convert to fraction form
215,012,978.82/296,743,101.08 = 122,207,436.99/x - Step 3: Cross multiply
215,012,978.82x = 296,743,101.08 × 122,207,436.99 - Step 4: Simplify right side
215,012,978.82x = 36,264,213,826,840,264 - Step 5: Solve for x
x = 36,264,213,826,840,264/215,012,978.82 - Step 6: Final answer
x = 168,660,580.52
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.