Finding the Fourth Proportional to 11,333,309.67, 15,640,389.36 and 6,439,361.49
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Solution
The fourth proportional to 11,333,309.67, 15,640,389.36 and 6,439,361.49 is: 8,886,558.64
Step by Step Solution
- Step 1: Write the proportion equation
11,333,309.67 : 15,640,389.36 = 6,439,361.49 : x - Step 2: Convert to fraction form
11,333,309.67/15,640,389.36 = 6,439,361.49/x - Step 3: Cross multiply
11,333,309.67x = 15,640,389.36 × 6,439,361.49 - Step 4: Simplify right side
11,333,309.67x = 100,714,120,933,389.75 - Step 5: Solve for x
x = 100,714,120,933,389.75/11,333,309.67 - Step 6: Final answer
x = 8,886,558.64
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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.