Finding the Fourth Proportional to 5,107,836.72, 7,048,602.36 and 2,784,678.96
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Solution
The fourth proportional to 5,107,836.72, 7,048,602.36 and 2,784,678.96 is: 3,842,741.22
Step by Step Solution
- Step 1: Write the proportion equation
5,107,836.72 : 7,048,602.36 = 2,784,678.96 : x - Step 2: Convert to fraction form
5,107,836.72/7,048,602.36 = 2,784,678.96/x - Step 3: Cross multiply
5,107,836.72x = 7,048,602.36 × 2,784,678.96 - Step 4: Simplify right side
5,107,836.72x = 19,628,094,689,298.35 - Step 5: Solve for x
x = 19,628,094,689,298.35/5,107,836.72 - Step 6: Final answer
x = 3,842,741.22
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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.