Finding the Fourth Proportional to 21,409,161.52, 32,106,543.36 and 7,759,450.60
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Solution
The fourth proportional to 21,409,161.52, 32,106,543.36 and 7,759,450.60 is: 11,636,566.75
Step by Step Solution
- Step 1: Write the proportion equation
21,409,161.52 : 32,106,543.36 = 7,759,450.60 : x - Step 2: Convert to fraction form
21,409,161.52/32,106,543.36 = 7,759,450.60/x - Step 3: Cross multiply
21,409,161.52x = 32,106,543.36 × 7,759,450.60 - Step 4: Simplify right side
21,409,161.52x = 249,129,137,138,678 - Step 5: Solve for x
x = 249,129,137,138,678/21,409,161.52 - Step 6: Final answer
x = 11,636,566.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.