Finding the Fourth Proportional to 11,999,691.54, 18,001,778.85 and 4,811,787.99
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Solution
The fourth proportional to 11,999,691.54, 18,001,778.85 and 4,811,787.99 is: 7,218,580.83
Step by Step Solution
- Step 1: Write the proportion equation
11,999,691.54 : 18,001,778.85 = 4,811,787.99 : x - Step 2: Convert to fraction form
11,999,691.54/18,001,778.85 = 4,811,787.99/x - Step 3: Cross multiply
11,999,691.54x = 18,001,778.85 × 4,811,787.99 - Step 4: Simplify right side
11,999,691.54x = 86,620,743,269,066.02 - Step 5: Solve for x
x = 86,620,743,269,066.02/11,999,691.54 - Step 6: Final answer
x = 7,218,580.83
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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.