Finding the Fourth Proportional to 7,143,950.00, 9,858,721.05 and 3,880,791.09
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Solution
The fourth proportional to 7,143,950.00, 9,858,721.05 and 3,880,791.09 is: 5,355,529.76
Step by Step Solution
- Step 1: Write the proportion equation
7,143,950.00 : 9,858,721.05 = 3,880,791.09 : x - Step 2: Convert to fraction form
7,143,950.00/9,858,721.05 = 3,880,791.09/x - Step 3: Cross multiply
7,143,950.00x = 9,858,721.05 × 3,880,791.09 - Step 4: Simplify right side
7,143,950.00x = 38,259,636,809,635.45 - Step 5: Solve for x
x = 38,259,636,809,635.45/7,143,950.00 - Step 6: Final answer
x = 5,355,529.76
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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.