Finding the Fourth Proportional to 258,193,942, 387,290,676.37 and 80,932,358.19
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Solution
The fourth proportional to 258,193,942, 387,290,676.37 and 80,932,358.19 is: 121,398,463.10
Step by Step Solution
- Step 1: Write the proportion equation
258,193,942 : 387,290,676.37 = 80,932,358.19 : x - Step 2: Convert to fraction form
258,193,942/387,290,676.37 = 80,932,358.19/x - Step 3: Cross multiply
258,193,942x = 387,290,676.37 × 80,932,358.19 - Step 4: Simplify right side
258,193,942x = 31,344,347,741,485,428 - Step 5: Solve for x
x = 31,344,347,741,485,428/258,193,942 - Step 6: Final answer
x = 121,398,463.10
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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.