Finding the Fourth Proportional to 78,176,241.25, 107,883,340.02 and 43,368,932.79
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Solution
The fourth proportional to 78,176,241.25, 107,883,340.02 and 43,368,932.79 is: 59,849,197.76
Step by Step Solution
- Step 1: Write the proportion equation
78,176,241.25 : 107,883,340.02 = 43,368,932.79 : x - Step 2: Convert to fraction form
78,176,241.25/107,883,340.02 = 43,368,932.79/x - Step 3: Cross multiply
78,176,241.25x = 107,883,340.02 × 43,368,932.79 - Step 4: Simplify right side
78,176,241.25x = 4,678,785,322,488,097 - Step 5: Solve for x
x = 4,678,785,322,488,097/78,176,241.25 - Step 6: Final answer
x = 59,849,197.76
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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.