Finding the Fourth Proportional to 2,853,610,749.66, 4,279,389,163.94 and 987,749,479.74
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Solution
The fourth proportional to 2,853,610,749.66, 4,279,389,163.94 and 987,749,479.74 is: 1,481,268,747.25
Step by Step Solution
- Step 1: Write the proportion equation
2,853,610,749.66 : 4,279,389,163.94 = 987,749,479.74 : x - Step 2: Convert to fraction form
2,853,610,749.66/4,279,389,163.94 = 987,749,479.74/x - Step 3: Cross multiply
2,853,610,749.66x = 4,279,389,163.94 × 987,749,479.74 - Step 4: Simplify right side
2,853,610,749.66x = 4,226,964,420,286,728,704 - Step 5: Solve for x
x = 4,226,964,420,286,728,704/2,853,610,749.66 - Step 6: Final answer
x = 1,481,268,747.25
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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.