Finding the Fourth Proportional to 74,543,408.02, 102,641,755.05 and 74,328,174.41
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Solution
The fourth proportional to 74,543,408.02, 102,641,755.05 and 74,328,174.41 is: 102,345,391.41
Step by Step Solution
- Step 1: Write the proportion equation
74,543,408.02 : 102,641,755.05 = 74,328,174.41 : x - Step 2: Convert to fraction form
74,543,408.02/102,641,755.05 = 74,328,174.41/x - Step 3: Cross multiply
74,543,408.02x = 102,641,755.05 × 74,328,174.41 - Step 4: Simplify right side
74,543,408.02x = 7,629,174,271,104,898 - Step 5: Solve for x
x = 7,629,174,271,104,898/74,543,408.02 - Step 6: Final answer
x = 102,345,391.41
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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.