Finding the Fourth Proportional to 98,638,311.33, 136,119,523.55 and 54,582,625.98
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Solution
The fourth proportional to 98,638,311.33, 136,119,523.55 and 54,582,625.98 is: 75,323,278.98
Step by Step Solution
- Step 1: Write the proportion equation
98,638,311.33 : 136,119,523.55 = 54,582,625.98 : x - Step 2: Convert to fraction form
98,638,311.33/136,119,523.55 = 54,582,625.98/x - Step 3: Cross multiply
98,638,311.33x = 136,119,523.55 × 54,582,625.98 - Step 4: Simplify right side
98,638,311.33x = 7,429,761,042,232,538 - Step 5: Solve for x
x = 7,429,761,042,232,538/98,638,311.33 - Step 6: Final answer
x = 75,323,278.98
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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.