Finding the Fourth Proportional to 19,787,357.20, 27,305,174.72 and 10,966,722.12
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Solution
The fourth proportional to 19,787,357.20, 27,305,174.72 and 10,966,722.12 is: 15,133,312.68
Step by Step Solution
- Step 1: Write the proportion equation
19,787,357.20 : 27,305,174.72 = 10,966,722.12 : x - Step 2: Convert to fraction form
19,787,357.20/27,305,174.72 = 10,966,722.12/x - Step 3: Cross multiply
19,787,357.20x = 27,305,174.72 × 10,966,722.12 - Step 4: Simplify right side
19,787,357.20x = 299,448,263,592,288.75 - Step 5: Solve for x
x = 299,448,263,592,288.75/19,787,357.20 - Step 6: Final answer
x = 15,133,312.68
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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.