Finding the Fourth Proportional to 19,345,247.36, 29,021,413.44 and 7,979,495.68
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Solution
The fourth proportional to 19,345,247.36, 29,021,413.44 and 7,979,495.68 is: 11,970,704.68
Step by Step Solution
- Step 1: Write the proportion equation
19,345,247.36 : 29,021,413.44 = 7,979,495.68 : x - Step 2: Convert to fraction form
19,345,247.36/29,021,413.44 = 7,979,495.68/x - Step 3: Cross multiply
19,345,247.36x = 29,021,413.44 × 7,979,495.68 - Step 4: Simplify right side
19,345,247.36x = 231,576,243,171,973.94 - Step 5: Solve for x
x = 231,576,243,171,973.94/19,345,247.36 - Step 6: Final answer
x = 11,970,704.68
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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.