Finding the Fourth Proportional to 180,338,247.36, 248,845,785.92 and 100,957,655.68
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Solution
The fourth proportional to 180,338,247.36, 248,845,785.92 and 100,957,655.68 is: 139,309,811.09
Step by Step Solution
- Step 1: Write the proportion equation
180,338,247.36 : 248,845,785.92 = 100,957,655.68 : x - Step 2: Convert to fraction form
180,338,247.36/248,845,785.92 = 100,957,655.68/x - Step 3: Cross multiply
180,338,247.36x = 248,845,785.92 × 100,957,655.68 - Step 4: Simplify right side
180,338,247.36x = 25,122,887,172,330,352 - Step 5: Solve for x
x = 25,122,887,172,330,352/180,338,247.36 - Step 6: Final answer
x = 139,309,811.09
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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.