Finding the Fourth Proportional to 644,719,743.11, 889,716,258.47 and 366,276,545.57
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Solution
The fourth proportional to 644,719,743.11, 889,716,258.47 and 366,276,545.57 is: 505,463,344.61
Step by Step Solution
- Step 1: Write the proportion equation
644,719,743.11 : 889,716,258.47 = 366,276,545.57 : x - Step 2: Convert to fraction form
644,719,743.11/889,716,258.47 = 366,276,545.57/x - Step 3: Cross multiply
644,719,743.11x = 889,716,258.47 × 366,276,545.57 - Step 4: Simplify right side
644,719,743.11x = 325,882,197,689,856,832 - Step 5: Solve for x
x = 325,882,197,689,856,832/644,719,743.11 - Step 6: Final answer
x = 505,463,344.61
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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.