Finding the Fourth Proportional to 197,218,486.60, 272,151,553.06 and 107,908,497.80
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Solution
The fourth proportional to 197,218,486.60, 272,151,553.06 and 107,908,497.80 is: 148,908,278.18
Step by Step Solution
- Step 1: Write the proportion equation
197,218,486.60 : 272,151,553.06 = 107,908,497.80 : x - Step 2: Convert to fraction form
197,218,486.60/272,151,553.06 = 107,908,497.80/x - Step 3: Cross multiply
197,218,486.60x = 272,151,553.06 × 107,908,497.80 - Step 4: Simplify right side
197,218,486.60x = 29,367,465,264,641,592 - Step 5: Solve for x
x = 29,367,465,264,641,592/197,218,486.60 - Step 6: Final answer
x = 148,908,278.18
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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.