Finding the Fourth Proportional to 163,738,855.14, 225,979,434.18 and 93,191,617.92
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Solution
The fourth proportional to 163,738,855.14, 225,979,434.18 and 93,191,617.92 is: 128,615,709.87
Step by Step Solution
- Step 1: Write the proportion equation
163,738,855.14 : 225,979,434.18 = 93,191,617.92 : x - Step 2: Convert to fraction form
163,738,855.14/225,979,434.18 = 93,191,617.92/x - Step 3: Cross multiply
163,738,855.14x = 225,979,434.18 × 93,191,617.92 - Step 4: Simplify right side
163,738,855.14x = 21,059,389,087,880,348 - Step 5: Solve for x
x = 21,059,389,087,880,348/163,738,855.14 - Step 6: Final answer
x = 128,615,709.87
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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.