Finding the Fourth Proportional to 8,303,807.90, 12,457,680.15 and 4,260,919.70
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Solution
The fourth proportional to 8,303,807.90, 12,457,680.15 and 4,260,919.70 is: 6,392,389.54
Step by Step Solution
- Step 1: Write the proportion equation
8,303,807.90 : 12,457,680.15 = 4,260,919.70 : x - Step 2: Convert to fraction form
8,303,807.90/12,457,680.15 = 4,260,919.70/x - Step 3: Cross multiply
8,303,807.90x = 12,457,680.15 × 4,260,919.70 - Step 4: Simplify right side
8,303,807.90x = 53,081,174,767,433.96 - Step 5: Solve for x
x = 53,081,174,767,433.96/8,303,807.90 - Step 6: Final answer
x = 6,392,389.54
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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.