Finding the Fourth Proportional to 13,148,272.84, 18,144,268.42 and 7,347,102.25
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Solution
The fourth proportional to 13,148,272.84, 18,144,268.42 and 7,347,102.25 is: 10,138,806.59
Step by Step Solution
- Step 1: Write the proportion equation
13,148,272.84 : 18,144,268.42 = 7,347,102.25 : x - Step 2: Convert to fraction form
13,148,272.84/18,144,268.42 = 7,347,102.25/x - Step 3: Cross multiply
13,148,272.84x = 18,144,268.42 × 7,347,102.25 - Step 4: Simplify right side
13,148,272.84x = 133,307,795,333,185.95 - Step 5: Solve for x
x = 133,307,795,333,185.95/13,148,272.84 - Step 6: Final answer
x = 10,138,806.59
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1.5x scale
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.