Finding the Fourth Proportional to 51,230,545.22, 76,840,138.47 and 12,892,069.70
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Solution
The fourth proportional to 51,230,545.22, 76,840,138.47 and 12,892,069.70 is: 19,336,675.35
Step by Step Solution
- Step 1: Write the proportion equation
51,230,545.22 : 76,840,138.47 = 12,892,069.70 : x - Step 2: Convert to fraction form
51,230,545.22/76,840,138.47 = 12,892,069.70/x - Step 3: Cross multiply
51,230,545.22x = 76,840,138.47 × 12,892,069.70 - Step 4: Simplify right side
51,230,545.22x = 990,628,420,912,891.25 - Step 5: Solve for x
x = 990,628,420,912,891.25/51,230,545.22 - Step 6: Final answer
x = 19,336,675.35
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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.