Finding the Fourth Proportional to 18,979,566.78, 28,463,461.98 and 6,847,453.08
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Solution
The fourth proportional to 18,979,566.78, 28,463,461.98 and 6,847,453.08 is: 10,269,055.28
Step by Step Solution
- Step 1: Write the proportion equation
18,979,566.78 : 28,463,461.98 = 6,847,453.08 : x - Step 2: Convert to fraction form
18,979,566.78/28,463,461.98 = 6,847,453.08/x - Step 3: Cross multiply
18,979,566.78x = 28,463,461.98 × 6,847,453.08 - Step 4: Simplify right side
18,979,566.78x = 194,902,220,402,413.91 - Step 5: Solve for x
x = 194,902,220,402,413.91/18,979,566.78 - Step 6: Final answer
x = 10,269,055.28
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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.