Finding the Fourth Proportional to 98,045,651.21, 135,298,634.22 and 56,199,717.09
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Solution
The fourth proportional to 98,045,651.21, 135,298,634.22 and 56,199,717.09 is: 77,553,107.88
Step by Step Solution
- Step 1: Write the proportion equation
98,045,651.21 : 135,298,634.22 = 56,199,717.09 : x - Step 2: Convert to fraction form
98,045,651.21/135,298,634.22 = 56,199,717.09/x - Step 3: Cross multiply
98,045,651.21x = 135,298,634.22 × 56,199,717.09 - Step 4: Simplify right side
98,045,651.21x = 7,603,744,965,827,393 - Step 5: Solve for x
x = 7,603,744,965,827,393/98,045,651.21 - Step 6: Final answer
x = 77,553,107.88
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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.