Finding the Fourth Proportional to 7,922,339.60, 11,887,923.62 and 4,278,995.80
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Solution
The fourth proportional to 7,922,339.60, 11,887,923.62 and 4,278,995.80 is: 6,420,877.90
Step by Step Solution
- Step 1: Write the proportion equation
7,922,339.60 : 11,887,923.62 = 4,278,995.80 : x - Step 2: Convert to fraction form
7,922,339.60/11,887,923.62 = 4,278,995.80/x - Step 3: Cross multiply
7,922,339.60x = 11,887,923.62 × 4,278,995.80 - Step 4: Simplify right side
7,922,339.60x = 50,868,375,240,700.79 - Step 5: Solve for x
x = 50,868,375,240,700.79/7,922,339.60 - Step 6: Final answer
x = 6,420,877.90
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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.