Finding the Fourth Proportional to 13,424,893.08, 18,525,862.51 and 8,206,640.81
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Solution
The fourth proportional to 13,424,893.08, 18,525,862.51 and 8,206,640.81 is: 11,324,864.82
Step by Step Solution
- Step 1: Write the proportion equation
13,424,893.08 : 18,525,862.51 = 8,206,640.81 : x - Step 2: Convert to fraction form
13,424,893.08/18,525,862.51 = 8,206,640.81/x - Step 3: Cross multiply
13,424,893.08x = 18,525,862.51 × 8,206,640.81 - Step 4: Simplify right side
13,424,893.08x = 152,035,099,315,015.03 - Step 5: Solve for x
x = 152,035,099,315,015.03/13,424,893.08 - Step 6: Final answer
x = 11,324,864.82
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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.