Finding the Fourth Proportional to 551,439,507.62, 760,984,220.97 and 303,920,271.14
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Solution
The fourth proportional to 551,439,507.62, 760,984,220.97 and 303,920,271.14 is: 419,408,706.80
Step by Step Solution
- Step 1: Write the proportion equation
551,439,507.62 : 760,984,220.97 = 303,920,271.14 : x - Step 2: Convert to fraction form
551,439,507.62/760,984,220.97 = 303,920,271.14/x - Step 3: Cross multiply
551,439,507.62x = 760,984,220.97 × 303,920,271.14 - Step 4: Simplify right side
551,439,507.62x = 231,278,530,770,464,064 - Step 5: Solve for x
x = 231,278,530,770,464,064/551,439,507.62 - Step 6: Final answer
x = 419,408,706.80
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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.