Finding the Fourth Proportional to 7,183,407.20, 9,913,311.93 and 3,920,431.46
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Solution
The fourth proportional to 7,183,407.20, 9,913,311.93 and 3,920,431.46 is: 5,410,310.02
Step by Step Solution
- Step 1: Write the proportion equation
7,183,407.20 : 9,913,311.93 = 3,920,431.46 : x - Step 2: Convert to fraction form
7,183,407.20/9,913,311.93 = 3,920,431.46/x - Step 3: Cross multiply
7,183,407.20x = 9,913,311.93 × 3,920,431.46 - Step 4: Simplify right side
7,183,407.20x = 38,864,459,963,165.31 - Step 5: Solve for x
x = 38,864,459,963,165.31/7,183,407.20 - Step 6: Final answer
x = 5,410,310.02
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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.