Finding the Fourth Proportional to 226,462,021.44, 312,515,952 and 128,676,877.44
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Solution
The fourth proportional to 226,462,021.44, 312,515,952 and 128,676,877.44 is: 177,573,160.38
Step by Step Solution
- Step 1: Write the proportion equation
226,462,021.44 : 312,515,952 = 128,676,877.44 : x - Step 2: Convert to fraction form
226,462,021.44/312,515,952 = 128,676,877.44/x - Step 3: Cross multiply
226,462,021.44x = 312,515,952 × 128,676,877.44 - Step 4: Simplify right side
226,462,021.44x = 40,213,576,853,548,920 - Step 5: Solve for x
x = 40,213,576,853,548,920/226,462,021.44 - Step 6: Final answer
x = 177,573,160.38
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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.