Finding the Fourth Proportional to 945,136,202.58, 1,304,308,838.39 and 521,748,861.03
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Solution
The fourth proportional to 945,136,202.58, 1,304,308,838.39 and 521,748,861.03 is: 720,024,954.08
Step by Step Solution
- Step 1: Write the proportion equation
945,136,202.58 : 1,304,308,838.39 = 521,748,861.03 : x - Step 2: Convert to fraction form
945,136,202.58/1,304,308,838.39 = 521,748,861.03/x - Step 3: Cross multiply
945,136,202.58x = 1,304,308,838.39 × 521,748,861.03 - Step 4: Simplify right side
945,136,202.58x = 680,521,650,858,736,000 - Step 5: Solve for x
x = 680,521,650,858,736,000/945,136,202.58 - Step 6: Final answer
x = 720,024,954.08
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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.