Finding the Fourth Proportional to 212,435,867.52, 292,878,806.00 and 159,286,453.11
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Solution
The fourth proportional to 212,435,867.52, 292,878,806.00 and 159,286,453.11 is: 219,603,340.73
Step by Step Solution
- Step 1: Write the proportion equation
212,435,867.52 : 292,878,806.00 = 159,286,453.11 : x - Step 2: Convert to fraction form
212,435,867.52/292,878,806.00 = 159,286,453.11/x - Step 3: Cross multiply
212,435,867.52x = 292,878,806.00 × 159,286,453.11 - Step 4: Simplify right side
212,435,867.52x = 46,651,626,198,035,360 - Step 5: Solve for x
x = 46,651,626,198,035,360/212,435,867.52 - Step 6: Final answer
x = 219,603,340.73
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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.