Finding the Fourth Proportional to 881,715,982.91, 1,323,391,187.91 and 445,323,129.21
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Solution
The fourth proportional to 881,715,982.91, 1,323,391,187.91 and 445,323,129.21 is: 668,397,439.08
Step by Step Solution
- Step 1: Write the proportion equation
881,715,982.91 : 1,323,391,187.91 = 445,323,129.21 : x - Step 2: Convert to fraction form
881,715,982.91/1,323,391,187.91 = 445,323,129.21/x - Step 3: Cross multiply
881,715,982.91x = 1,323,391,187.91 × 445,323,129.21 - Step 4: Simplify right side
881,715,982.91x = 589,336,704,970,668,032 - Step 5: Solve for x
x = 589,336,704,970,668,032/881,715,982.91 - Step 6: Final answer
x = 668,397,439.08
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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.