Finding the Fourth Proportional to 13,413,804.48, 18,523,347.84 and 8,520,603.12
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Solution
The fourth proportional to 13,413,804.48, 18,523,347.84 and 8,520,603.12 is: 11,766,243.92
Step by Step Solution
- Step 1: Write the proportion equation
13,413,804.48 : 18,523,347.84 = 8,520,603.12 : x - Step 2: Convert to fraction form
13,413,804.48/18,523,347.84 = 8,520,603.12/x - Step 3: Cross multiply
13,413,804.48x = 18,523,347.84 × 8,520,603.12 - Step 4: Simplify right side
13,413,804.48x = 157,830,095,398,349.25 - Step 5: Solve for x
x = 157,830,095,398,349.25/13,413,804.48 - Step 6: Final answer
x = 11,766,243.92
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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.