Finding the Fourth Proportional to 664,368,193.80, 996,552,290.70 and 276,947,704.80
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Solution
The fourth proportional to 664,368,193.80, 996,552,290.70 and 276,947,704.80 is: 415,421,557.20
Step by Step Solution
- Step 1: Write the proportion equation
664,368,193.80 : 996,552,290.70 = 276,947,704.80 : x - Step 2: Convert to fraction form
664,368,193.80/996,552,290.70 = 276,947,704.80/x - Step 3: Cross multiply
664,368,193.80x = 996,552,290.70 × 276,947,704.80 - Step 4: Simplify right side
664,368,193.80x = 275,992,869,622,547,424 - Step 5: Solve for x
x = 275,992,869,622,547,424/664,368,193.80 - Step 6: Final answer
x = 415,421,557.20
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1.5x scale
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.