Finding the Fourth Proportional to 258,672,267.79, 387,864,846.97 and 86,054,850.97
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Solution
The fourth proportional to 258,672,267.79, 387,864,846.97 and 86,054,850.97 is: 129,034,518.80
Step by Step Solution
- Step 1: Write the proportion equation
258,672,267.79 : 387,864,846.97 = 86,054,850.97 : x - Step 2: Convert to fraction form
258,672,267.79/387,864,846.97 = 86,054,850.97/x - Step 3: Cross multiply
258,672,267.79x = 387,864,846.97 × 86,054,850.97 - Step 4: Simplify right side
258,672,267.79x = 33,377,651,601,320,404 - Step 5: Solve for x
x = 33,377,651,601,320,404/258,672,267.79 - Step 6: Final answer
x = 129,034,518.80
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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.