Finding the Fourth Proportional to 76,994,243.68, 115,498,465.04 and 25,179,115.20
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Solution
The fourth proportional to 76,994,243.68, 115,498,465.04 and 25,179,115.20 is: 37,770,994.53
Step by Step Solution
- Step 1: Write the proportion equation
76,994,243.68 : 115,498,465.04 = 25,179,115.20 : x - Step 2: Convert to fraction form
76,994,243.68/115,498,465.04 = 25,179,115.20/x - Step 3: Cross multiply
76,994,243.68x = 115,498,465.04 × 25,179,115.20 - Step 4: Simplify right side
76,994,243.68x = 2,908,149,156,665,332.50 - Step 5: Solve for x
x = 2,908,149,156,665,332.50/76,994,243.68 - Step 6: Final answer
x = 37,770,994.53
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.