Finding the Fourth Proportional to 87,694,561,463.85, 120,997,753,398.13 and 49,632,768,459.99
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Solution
The fourth proportional to 87,694,561,463.85, 120,997,753,398.13 and 49,632,768,459.99 is: 68,481,481,386.55
Step by Step Solution
- Step 1: Write the proportion equation
87,694,561,463.85 : 120,997,753,398.13 = 49,632,768,459.99 : x - Step 2: Convert to fraction form
87,694,561,463.85/120,997,753,398.13 = 49,632,768,459.99/x - Step 3: Cross multiply
87,694,561,463.85x = 120,997,753,398.13 × 49,632,768,459.99 - Step 4: Simplify right side
87,694,561,463.85x = 6,005,453,478,588,354,396,160 - Step 5: Solve for x
x = 6,005,453,478,588,354,396,160/87,694,561,463.85 - Step 6: Final answer
x = 68,481,481,386.55
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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.