Finding the Fourth Proportional to 134,136,265.20, 201,204,397.80 and 128,845,474.80
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Solution
The fourth proportional to 134,136,265.20, 201,204,397.80 and 128,845,474.80 is: 193,268,212.20
Step by Step Solution
- Step 1: Write the proportion equation
134,136,265.20 : 201,204,397.80 = 128,845,474.80 : x - Step 2: Convert to fraction form
134,136,265.20/201,204,397.80 = 128,845,474.80/x - Step 3: Cross multiply
134,136,265.20x = 201,204,397.80 × 128,845,474.80 - Step 4: Simplify right side
134,136,265.20x = 25,924,276,166,389,076 - Step 5: Solve for x
x = 25,924,276,166,389,076/134,136,265.20 - Step 6: Final answer
x = 193,268,212.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.