Finding the Fourth Proportional to 217,805,175.60, 325,762,979.40 and 194,941,402.80
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Solution
The fourth proportional to 217,805,175.60, 325,762,979.40 and 194,941,402.80 is: 291,566,497.49
Step by Step Solution
- Step 1: Write the proportion equation
217,805,175.60 : 325,762,979.40 = 194,941,402.80 : x - Step 2: Convert to fraction form
217,805,175.60/325,762,979.40 = 194,941,402.80/x - Step 3: Cross multiply
217,805,175.60x = 325,762,979.40 × 194,941,402.80 - Step 4: Simplify right side
217,805,175.60x = 63,504,692,184,543,504 - Step 5: Solve for x
x = 63,504,692,184,543,504/217,805,175.60 - Step 6: Final answer
x = 291,566,497.49
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.