Finding the Fourth Proportional to 21,319,343.49, 31,979,020.70 and 5,968,894.68
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Solution
The fourth proportional to 21,319,343.49, 31,979,020.70 and 5,968,894.68 is: 8,953,343.54
Step by Step Solution
- Step 1: Write the proportion equation
21,319,343.49 : 31,979,020.70 = 5,968,894.68 : x - Step 2: Convert to fraction form
21,319,343.49/31,979,020.70 = 5,968,894.68/x - Step 3: Cross multiply
21,319,343.49x = 31,979,020.70 × 5,968,894.68 - Step 4: Simplify right side
21,319,343.49x = 190,879,406,367,944.75 - Step 5: Solve for x
x = 190,879,406,367,944.75/21,319,343.49 - Step 6: Final answer
x = 8,953,343.54
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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.