Finding the Fourth Proportional to 957,867,125.70, 1,436,800,688.55 and 728,284,613.70
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Solution
The fourth proportional to 957,867,125.70, 1,436,800,688.55 and 728,284,613.70 is: 1,092,426,920.55
Step by Step Solution
- Step 1: Write the proportion equation
957,867,125.70 : 1,436,800,688.55 = 728,284,613.70 : x - Step 2: Convert to fraction form
957,867,125.70/1,436,800,688.55 = 728,284,613.70/x - Step 3: Cross multiply
957,867,125.70x = 1,436,800,688.55 × 728,284,613.70 - Step 4: Simplify right side
957,867,125.70x = 1,046,399,834,424,530,816 - Step 5: Solve for x
x = 1,046,399,834,424,530,816/957,867,125.70 - Step 6: Final answer
x = 1,092,426,920.55
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Double scale
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Similar ratio
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1.5x scale
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.