Finding the Fourth Proportional to 68,278,806.36, 94,330,852.20 and 57,248,453.16
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Solution
The fourth proportional to 68,278,806.36, 94,330,852.20 and 57,248,453.16 is: 79,091,824.56
Step by Step Solution
- Step 1: Write the proportion equation
68,278,806.36 : 94,330,852.20 = 57,248,453.16 : x - Step 2: Convert to fraction form
68,278,806.36/94,330,852.20 = 57,248,453.16/x - Step 3: Cross multiply
68,278,806.36x = 94,330,852.20 × 57,248,453.16 - Step 4: Simplify right side
68,278,806.36x = 5,400,295,373,714,583 - Step 5: Solve for x
x = 5,400,295,373,714,583/68,278,806.36 - Step 6: Final answer
x = 79,091,824.56
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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.