Finding the Fourth Proportional to 7,867,658,954.92, 10,858,476,786.36 and 5,008,887,979.08
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Solution
The fourth proportional to 7,867,658,954.92, 10,858,476,786.36 and 5,008,887,979.08 is: 6,912,970,447.49
Step by Step Solution
- Step 1: Write the proportion equation
7,867,658,954.92 : 10,858,476,786.36 = 5,008,887,979.08 : x - Step 2: Convert to fraction form
7,867,658,954.92/10,858,476,786.36 = 5,008,887,979.08/x - Step 3: Cross multiply
7,867,658,954.92x = 10,858,476,786.36 × 5,008,887,979.08 - Step 4: Simplify right side
7,867,658,954.92x = 54,388,893,846,317,834,240 - Step 5: Solve for x
x = 54,388,893,846,317,834,240/7,867,658,954.92 - Step 6: Final answer
x = 6,912,970,447.49
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1.5x scale
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.