Finding the Fourth Proportional to 5,134,553.28, 7,085,944.80 and 2,842,966.08
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Solution
The fourth proportional to 5,134,553.28, 7,085,944.80 and 2,842,966.08 is: 3,923,437.86
Step by Step Solution
- Step 1: Write the proportion equation
5,134,553.28 : 7,085,944.80 = 2,842,966.08 : x - Step 2: Convert to fraction form
5,134,553.28/7,085,944.80 = 2,842,966.08/x - Step 3: Cross multiply
5,134,553.28x = 7,085,944.80 × 2,842,966.08 - Step 4: Simplify right side
5,134,553.28x = 20,145,100,711,152.38 - Step 5: Solve for x
x = 20,145,100,711,152.38/5,134,553.28 - Step 6: Final answer
x = 3,923,437.86
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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.