Finding the Fourth Proportional to 352,266,447.29, 486,138,817.67 and 211,091,138.55
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Solution
The fourth proportional to 352,266,447.29, 486,138,817.67 and 211,091,138.55 is: 291,312,434.95
Step by Step Solution
- Step 1: Write the proportion equation
352,266,447.29 : 486,138,817.67 = 211,091,138.55 : x - Step 2: Convert to fraction form
352,266,447.29/486,138,817.67 = 211,091,138.55/x - Step 3: Cross multiply
352,266,447.29x = 486,138,817.67 × 211,091,138.55 - Step 4: Simplify right side
352,266,447.29x = 102,619,596,512,880,464 - Step 5: Solve for x
x = 102,619,596,512,880,464/352,266,447.29 - Step 6: Final answer
x = 291,312,434.95
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.