Finding the Fourth Proportional to 721,063,832.25, 995,110,043.67 and 403,521,392.82
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Solution
The fourth proportional to 721,063,832.25, 995,110,043.67 and 403,521,392.82 is: 556,883,001.02
Step by Step Solution
- Step 1: Write the proportion equation
721,063,832.25 : 995,110,043.67 = 403,521,392.82 : x - Step 2: Convert to fraction form
721,063,832.25/995,110,043.67 = 403,521,392.82/x - Step 3: Cross multiply
721,063,832.25x = 995,110,043.67 × 403,521,392.82 - Step 4: Simplify right side
721,063,832.25x = 401,548,190,830,889,408 - Step 5: Solve for x
x = 401,548,190,830,889,408/721,063,832.25 - Step 6: Final answer
x = 556,883,001.02
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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.