Finding the Fourth Proportional to 85,364,691.54, 128,067,408 and 27,857,069.70
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Solution
The fourth proportional to 85,364,691.54, 128,067,408 and 27,857,069.70 is: 41,792,252.12
Step by Step Solution
- Step 1: Write the proportion equation
85,364,691.54 : 128,067,408 = 27,857,069.70 : x - Step 2: Convert to fraction form
85,364,691.54/128,067,408 = 27,857,069.70/x - Step 3: Cross multiply
85,364,691.54x = 128,067,408 × 27,857,069.70 - Step 4: Simplify right side
85,364,691.54x = 3,567,582,710,954,337.50 - Step 5: Solve for x
x = 3,567,582,710,954,337.50/85,364,691.54 - Step 6: Final answer
x = 41,792,252.12
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.