Finding the Fourth Proportional to 216,406,971.84, 298,467,486.88 and 190,245,552.96
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Solution
The fourth proportional to 216,406,971.84, 298,467,486.88 and 190,245,552.96 is: 262,385,779.90
Step by Step Solution
- Step 1: Write the proportion equation
216,406,971.84 : 298,467,486.88 = 190,245,552.96 : x - Step 2: Convert to fraction form
216,406,971.84/298,467,486.88 = 190,245,552.96/x - Step 3: Cross multiply
216,406,971.84x = 298,467,486.88 × 190,245,552.96 - Step 4: Simplify right side
216,406,971.84x = 56,782,112,082,067,144 - Step 5: Solve for x
x = 56,782,112,082,067,144/216,406,971.84 - Step 6: Final answer
x = 262,385,779.90
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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.