Finding the Fourth Proportional to 1,307,632,394.56, 1,804,545,230.88 and 720,942,571.84
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Solution
The fourth proportional to 1,307,632,394.56, 1,804,545,230.88 and 720,942,571.84 is: 994,907,655.37
Step by Step Solution
- Step 1: Write the proportion equation
1,307,632,394.56 : 1,804,545,230.88 = 720,942,571.84 : x - Step 2: Convert to fraction form
1,307,632,394.56/1,804,545,230.88 = 720,942,571.84/x - Step 3: Cross multiply
1,307,632,394.56x = 1,804,545,230.88 × 720,942,571.84 - Step 4: Simplify right side
1,307,632,394.56x = 1,300,973,479,752,233,984 - Step 5: Solve for x
x = 1,300,973,479,752,233,984/1,307,632,394.56 - Step 6: Final answer
x = 994,907,655.37
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.