Finding the Fourth Proportional to 7,706,907.36, 11,513,486.55 and 4,989,091.68
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Solution
The fourth proportional to 7,706,907.36, 11,513,486.55 and 4,989,091.68 is: 7,453,293.17
Step by Step Solution
- Step 1: Write the proportion equation
7,706,907.36 : 11,513,486.55 = 4,989,091.68 : x - Step 2: Convert to fraction form
7,706,907.36/11,513,486.55 = 4,989,091.68/x - Step 3: Cross multiply
7,706,907.36x = 11,513,486.55 × 4,989,091.68 - Step 4: Simplify right side
7,706,907.36x = 57,441,839,954,396.91 - Step 5: Solve for x
x = 57,441,839,954,396.91/7,706,907.36 - Step 6: Final answer
x = 7,453,293.17
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.