Finding the Fourth Proportional to 5,432,820.90, 8,149,231.35 and 1,645,811.70
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Solution
The fourth proportional to 5,432,820.90, 8,149,231.35 and 1,645,811.70 is: 2,468,717.55
Step by Step Solution
- Step 1: Write the proportion equation
5,432,820.90 : 8,149,231.35 = 1,645,811.70 : x - Step 2: Convert to fraction form
5,432,820.90/8,149,231.35 = 1,645,811.70/x - Step 3: Cross multiply
5,432,820.90x = 8,149,231.35 × 1,645,811.70 - Step 4: Simplify right side
5,432,820.90x = 13,412,100,301,836.79 - Step 5: Solve for x
x = 13,412,100,301,836.79/5,432,820.90 - Step 6: Final answer
x = 2,468,717.55
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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.