Finding the Fourth Proportional to 7,085,940.64, 9,778,908.18 and 3,988,663.84
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Solution
The fourth proportional to 7,085,940.64, 9,778,908.18 and 3,988,663.84 is: 5,504,530.65
Step by Step Solution
- Step 1: Write the proportion equation
7,085,940.64 : 9,778,908.18 = 3,988,663.84 : x - Step 2: Convert to fraction form
7,085,940.64/9,778,908.18 = 3,988,663.84/x - Step 3: Cross multiply
7,085,940.64x = 9,778,908.18 × 3,988,663.84 - Step 4: Simplify right side
7,085,940.64x = 39,004,777,452,246.21 - Step 5: Solve for x
x = 39,004,777,452,246.21/7,085,940.64 - Step 6: Final answer
x = 5,504,530.65
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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.