Finding the Fourth Proportional to 7,119,336.20, 9,821,972.04 and 5,263,208.60
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Solution
The fourth proportional to 7,119,336.20, 9,821,972.04 and 5,263,208.60 is: 7,261,222.99
Step by Step Solution
- Step 1: Write the proportion equation
7,119,336.20 : 9,821,972.04 = 5,263,208.60 : x - Step 2: Convert to fraction form
7,119,336.20/9,821,972.04 = 5,263,208.60/x - Step 3: Cross multiply
7,119,336.20x = 9,821,972.04 × 5,263,208.60 - Step 4: Simplify right side
7,119,336.20x = 51,695,087,709,887.54 - Step 5: Solve for x
x = 51,695,087,709,887.54/7,119,336.20 - Step 6: Final answer
x = 7,261,222.99
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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.