Finding the Fourth Proportional to 6,897,533.99, 9,517,620.62 and 3,917,134.13
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Solution
The fourth proportional to 6,897,533.99, 9,517,620.62 and 3,917,134.13 is: 5,405,090.66
Step by Step Solution
- Step 1: Write the proportion equation
6,897,533.99 : 9,517,620.62 = 3,917,134.13 : x - Step 2: Convert to fraction form
6,897,533.99/9,517,620.62 = 3,917,134.13/x - Step 3: Cross multiply
6,897,533.99x = 9,517,620.62 × 3,917,134.13 - Step 4: Simplify right side
6,897,533.99x = 37,281,796,529,198.49 - Step 5: Solve for x
x = 37,281,796,529,198.49/6,897,533.99 - Step 6: Final answer
x = 5,405,090.66
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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.