Finding the Fourth Proportional to 7,212,172,324.11, 9,952,798,750.97 and 3,997,289,872.77
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Solution
The fourth proportional to 7,212,172,324.11, 9,952,798,750.97 and 3,997,289,872.77 is: 5,516,260,547.46
Step by Step Solution
- Step 1: Write the proportion equation
7,212,172,324.11 : 9,952,798,750.97 = 3,997,289,872.77 : x - Step 2: Convert to fraction form
7,212,172,324.11/9,952,798,750.97 = 3,997,289,872.77/x - Step 3: Cross multiply
7,212,172,324.11x = 9,952,798,750.97 × 3,997,289,872.77 - Step 4: Simplify right side
7,212,172,324.11x = 39,784,221,652,950,302,720 - Step 5: Solve for x
x = 39,784,221,652,950,302,720/7,212,172,324.11 - Step 6: Final answer
x = 5,516,260,547.46
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1.5x scale
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.