Finding the Fourth Proportional to 5,377,923.20, 8,065,329.60 and 1,965,814.40
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Solution
The fourth proportional to 5,377,923.20, 8,065,329.60 and 1,965,814.40 is: 2,948,153.12
Step by Step Solution
- Step 1: Write the proportion equation
5,377,923.20 : 8,065,329.60 = 1,965,814.40 : x - Step 2: Convert to fraction form
5,377,923.20/8,065,329.60 = 1,965,814.40/x - Step 3: Cross multiply
5,377,923.20x = 8,065,329.60 × 1,965,814.40 - Step 4: Simplify right side
5,377,923.20x = 15,854,941,068,426.24 - Step 5: Solve for x
x = 15,854,941,068,426.24/5,377,923.20 - Step 6: Final answer
x = 2,948,153.12
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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.