Finding the Fourth Proportional to 486,110,213.84, 670,772,692.68 and 387,242,728.40
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Solution
The fourth proportional to 486,110,213.84, 670,772,692.68 and 387,242,728.40 is: 534,347,644.33
Step by Step Solution
- Step 1: Write the proportion equation
486,110,213.84 : 670,772,692.68 = 387,242,728.40 : x - Step 2: Convert to fraction form
486,110,213.84/670,772,692.68 = 387,242,728.40/x - Step 3: Cross multiply
486,110,213.84x = 670,772,692.68 × 387,242,728.40 - Step 4: Simplify right side
486,110,213.84x = 259,751,847,649,617,856 - Step 5: Solve for x
x = 259,751,847,649,617,856/486,110,213.84 - Step 6: Final answer
x = 534,347,644.33
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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.