Finding the Fourth Proportional to 261,858,403.91, 392,773,368.49 and 80,105,581.91
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Solution
The fourth proportional to 261,858,403.91, 392,773,368.49 and 80,105,581.91 is: 120,154,017.48
Step by Step Solution
- Step 1: Write the proportion equation
261,858,403.91 : 392,773,368.49 = 80,105,581.91 : x - Step 2: Convert to fraction form
261,858,403.91/392,773,368.49 = 80,105,581.91/x - Step 3: Cross multiply
261,858,403.91x = 392,773,368.49 × 80,105,581.91 - Step 4: Simplify right side
261,858,403.91x = 31,463,339,241,642,308 - Step 5: Solve for x
x = 31,463,339,241,642,308/261,858,403.91 - Step 6: Final answer
x = 120,154,017.48
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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.