Finding the Fourth Proportional to 5,611,103.45, 8,416,905.60 and 1,720,280.65
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Solution
The fourth proportional to 5,611,103.45, 8,416,905.60 and 1,720,280.65 is: 2,580,497.75
Step by Step Solution
- Step 1: Write the proportion equation
5,611,103.45 : 8,416,905.60 = 1,720,280.65 : x - Step 2: Convert to fraction form
5,611,103.45/8,416,905.60 = 1,720,280.65/x - Step 3: Cross multiply
5,611,103.45x = 8,416,905.60 × 1,720,280.65 - Step 4: Simplify right side
5,611,103.45x = 14,479,439,836,556.64 - Step 5: Solve for x
x = 14,479,439,836,556.64/5,611,103.45 - Step 6: Final answer
x = 2,580,497.75
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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.