Finding the Fourth Proportional to 212,544,004.20, 318,816,006.30 and 193,396,381.80
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Solution
The fourth proportional to 212,544,004.20, 318,816,006.30 and 193,396,381.80 is: 290,094,572.70
Step by Step Solution
- Step 1: Write the proportion equation
212,544,004.20 : 318,816,006.30 = 193,396,381.80 : x - Step 2: Convert to fraction form
212,544,004.20/318,816,006.30 = 193,396,381.80/x - Step 3: Cross multiply
212,544,004.20x = 318,816,006.30 × 193,396,381.80 - Step 4: Simplify right side
212,544,004.20x = 61,657,862,078,346,008 - Step 5: Solve for x
x = 61,657,862,078,346,008/212,544,004.20 - Step 6: Final answer
x = 290,094,572.70
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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.