Finding the Fourth Proportional to 386,902,193.58, 533,911,001.09 and 236,446,561.77
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Solution
The fourth proportional to 386,902,193.58, 533,911,001.09 and 236,446,561.77 is: 326,287,683.53
Step by Step Solution
- Step 1: Write the proportion equation
386,902,193.58 : 533,911,001.09 = 236,446,561.77 : x - Step 2: Convert to fraction form
386,902,193.58/533,911,001.09 = 236,446,561.77/x - Step 3: Cross multiply
386,902,193.58x = 533,911,001.09 × 236,446,561.77 - Step 4: Simplify right side
386,902,193.58x = 126,241,420,497,726,992 - Step 5: Solve for x
x = 126,241,420,497,726,992/386,902,193.58 - Step 6: Final answer
x = 326,287,683.53
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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.