Finding the Fourth Proportional to 5,643,336.41, 7,787,328.83 and 3,128,778.43
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Solution
The fourth proportional to 5,643,336.41, 7,787,328.83 and 3,128,778.43 is: 4,317,450.65
Step by Step Solution
- Step 1: Write the proportion equation
5,643,336.41 : 7,787,328.83 = 3,128,778.43 : x - Step 2: Convert to fraction form
5,643,336.41/7,787,328.83 = 3,128,778.43/x - Step 3: Cross multiply
5,643,336.41x = 7,787,328.83 × 3,128,778.43 - Step 4: Simplify right side
5,643,336.41x = 24,364,826,470,621.14 - Step 5: Solve for x
x = 24,364,826,470,621.14/5,643,336.41 - Step 6: Final answer
x = 4,317,450.65
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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.