Finding the Fourth Proportional to 79,178,910.67, 109,228,068.12 and 68,710,233.70
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Solution
The fourth proportional to 79,178,910.67, 109,228,068.12 and 68,710,233.70 is: 94,786,427.64
Step by Step Solution
- Step 1: Write the proportion equation
79,178,910.67 : 109,228,068.12 = 68,710,233.70 : x - Step 2: Convert to fraction form
79,178,910.67/109,228,068.12 = 68,710,233.70/x - Step 3: Cross multiply
79,178,910.67x = 109,228,068.12 × 68,710,233.70 - Step 4: Simplify right side
79,178,910.67x = 7,505,086,087,124,720 - Step 5: Solve for x
x = 7,505,086,087,124,720/79,178,910.67 - Step 6: Final answer
x = 94,786,427.64
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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.