Finding the Fourth Proportional to 66,480,517.70, 91,077,884.45 and 63,994,455.38
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Solution
The fourth proportional to 66,480,517.70, 91,077,884.45 and 63,994,455.38 is: 87,671,994.95
Step by Step Solution
- Step 1: Write the proportion equation
66,480,517.70 : 91,077,884.45 = 63,994,455.38 : x - Step 2: Convert to fraction form
66,480,517.70/91,077,884.45 = 63,994,455.38/x - Step 3: Cross multiply
66,480,517.70x = 91,077,884.45 × 63,994,455.38 - Step 4: Simplify right side
66,480,517.70x = 5,828,479,612,124,928 - Step 5: Solve for x
x = 5,828,479,612,124,928/66,480,517.70 - Step 6: Final answer
x = 87,671,994.95
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.