Finding the Fourth Proportional to 163,738,853.64, 225,979,432.11 and 93,191,616.42
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Solution
The fourth proportional to 163,738,853.64, 225,979,432.11 and 93,191,616.42 is: 128,615,707.80
Step by Step Solution
- Step 1: Write the proportion equation
163,738,853.64 : 225,979,432.11 = 93,191,616.42 : x - Step 2: Convert to fraction form
163,738,853.64/225,979,432.11 = 93,191,616.42/x - Step 3: Cross multiply
163,738,853.64x = 225,979,432.11 × 93,191,616.42 - Step 4: Simplify right side
163,738,853.64x = 21,059,388,556,004,552 - Step 5: Solve for x
x = 21,059,388,556,004,552/163,738,853.64 - Step 6: Final answer
x = 128,615,707.80
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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.