Finding the Fourth Proportional to 102,894,403.68, 141,989,062.59 and 61,080,256.44
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Solution
The fourth proportional to 102,894,403.68, 141,989,062.59 and 61,080,256.44 is: 84,287,658.46
Step by Step Solution
- Step 1: Write the proportion equation
102,894,403.68 : 141,989,062.59 = 61,080,256.44 : x - Step 2: Convert to fraction form
102,894,403.68/141,989,062.59 = 61,080,256.44/x - Step 3: Cross multiply
102,894,403.68x = 141,989,062.59 × 61,080,256.44 - Step 4: Simplify right side
102,894,403.68x = 8,672,728,354,672,410 - Step 5: Solve for x
x = 8,672,728,354,672,410/102,894,403.68 - Step 6: Final answer
x = 84,287,658.46
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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.