Finding the Fourth Proportional to 1,036,253,717.24, 1,555,079,969.66 and 405,907,587.99
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Solution
The fourth proportional to 1,036,253,717.24, 1,555,079,969.66 and 405,907,587.99 is: 609,135,339.27
Step by Step Solution
- Step 1: Write the proportion equation
1,036,253,717.24 : 1,555,079,969.66 = 405,907,587.99 : x - Step 2: Convert to fraction form
1,036,253,717.24/1,555,079,969.66 = 405,907,587.99/x - Step 3: Cross multiply
1,036,253,717.24x = 1,555,079,969.66 × 405,907,587.99 - Step 4: Simplify right side
1,036,253,717.24x = 631,218,759,616,253,056 - Step 5: Solve for x
x = 631,218,759,616,253,056/1,036,253,717.24 - Step 6: Final answer
x = 609,135,339.27
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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.