Finding the Fourth Proportional to 71,260,868.40, 106,891,302.60 and 61,057,201.20
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Solution
The fourth proportional to 71,260,868.40, 106,891,302.60 and 61,057,201.20 is: 91,585,801.80
Step by Step Solution
- Step 1: Write the proportion equation
71,260,868.40 : 106,891,302.60 = 61,057,201.20 : x - Step 2: Convert to fraction form
71,260,868.40/106,891,302.60 = 61,057,201.20/x - Step 3: Cross multiply
71,260,868.40x = 106,891,302.60 × 61,057,201.20 - Step 4: Simplify right side
71,260,868.40x = 6,526,483,769,378,283 - Step 5: Solve for x
x = 6,526,483,769,378,283/71,260,868.40 - Step 6: Final answer
x = 91,585,801.80
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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.