Finding the Fourth Proportional to 79,760,676.48, 119,641,014.72 and 19,176,403.20
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Solution
The fourth proportional to 79,760,676.48, 119,641,014.72 and 19,176,403.20 is: 28,764,604.80
Step by Step Solution
- Step 1: Write the proportion equation
79,760,676.48 : 119,641,014.72 = 19,176,403.20 : x - Step 2: Convert to fraction form
79,760,676.48/119,641,014.72 = 19,176,403.20/x - Step 3: Cross multiply
79,760,676.48x = 119,641,014.72 × 19,176,403.20 - Step 4: Simplify right side
79,760,676.48x = 2,294,284,337,527,855 - Step 5: Solve for x
x = 2,294,284,337,527,855/79,760,676.48 - Step 6: Final answer
x = 28,764,604.80
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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.