Finding the Fourth Proportional to 352,266,446.79, 486,138,816.98 and 211,091,138.04
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Solution
The fourth proportional to 352,266,446.79, 486,138,816.98 and 211,091,138.04 is: 291,312,434.26
Step by Step Solution
- Step 1: Write the proportion equation
352,266,446.79 : 486,138,816.98 = 211,091,138.04 : x - Step 2: Convert to fraction form
352,266,446.79/486,138,816.98 = 211,091,138.04/x - Step 3: Cross multiply
352,266,446.79x = 486,138,816.98 × 211,091,138.04 - Step 4: Simplify right side
352,266,446.79x = 102,619,596,123,286,624 - Step 5: Solve for x
x = 102,619,596,123,286,624/352,266,446.79 - Step 6: Final answer
x = 291,312,434.26
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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.