Finding the Fourth Proportional to 8,356,893.99, 11,528,269.38 and 5,457,981.75
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Solution
The fourth proportional to 8,356,893.99, 11,528,269.38 and 5,457,981.75 is: 7,529,242.80
Step by Step Solution
- Step 1: Write the proportion equation
8,356,893.99 : 11,528,269.38 = 5,457,981.75 : x - Step 2: Convert to fraction form
8,356,893.99/11,528,269.38 = 5,457,981.75/x - Step 3: Cross multiply
8,356,893.99x = 11,528,269.38 × 5,457,981.75 - Step 4: Simplify right side
8,356,893.99x = 62,921,083,885,123.82 - Step 5: Solve for x
x = 62,921,083,885,123.82/8,356,893.99 - Step 6: Final answer
x = 7,529,242.80
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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.