Finding the Fourth Proportional to 1,625,728,072.92, 2,243,324,813.04 and 901,497,789.86
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Solution
The fourth proportional to 1,625,728,072.92, 2,243,324,813.04 and 901,497,789.86 is: 1,243,967,176.66
Step by Step Solution
- Step 1: Write the proportion equation
1,625,728,072.92 : 2,243,324,813.04 = 901,497,789.86 : x - Step 2: Convert to fraction form
1,625,728,072.92/2,243,324,813.04 = 901,497,789.86/x - Step 3: Cross multiply
1,625,728,072.92x = 2,243,324,813.04 × 901,497,789.86 - Step 4: Simplify right side
1,625,728,072.92x = 2,022,352,360,882,441,216 - Step 5: Solve for x
x = 2,022,352,360,882,441,216/1,625,728,072.92 - Step 6: Final answer
x = 1,243,967,176.66
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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.