Finding the Fourth Proportional to 991,857,428.16, 1,487,789,201.67 and 244,873,286.10
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Solution
The fourth proportional to 991,857,428.16, 1,487,789,201.67 and 244,873,286.10 is: 367,310,684.47
Step by Step Solution
- Step 1: Write the proportion equation
991,857,428.16 : 1,487,789,201.67 = 244,873,286.10 : x - Step 2: Convert to fraction form
991,857,428.16/1,487,789,201.67 = 244,873,286.10/x - Step 3: Cross multiply
991,857,428.16x = 1,487,789,201.67 × 244,873,286.10 - Step 4: Simplify right side
991,857,428.16x = 364,319,830,837,028,544 - Step 5: Solve for x
x = 364,319,830,837,028,544/991,857,428.16 - Step 6: Final answer
x = 367,310,684.47
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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.