Finding the Fourth Proportional to 10,352,489.70, 15,528,734.55 and 2,780,220.90
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Solution
The fourth proportional to 10,352,489.70, 15,528,734.55 and 2,780,220.90 is: 4,170,331.35
Step by Step Solution
- Step 1: Write the proportion equation
10,352,489.70 : 15,528,734.55 = 2,780,220.90 : x - Step 2: Convert to fraction form
10,352,489.70/15,528,734.55 = 2,780,220.90/x - Step 3: Cross multiply
10,352,489.70x = 15,528,734.55 × 2,780,220.90 - Step 4: Simplify right side
10,352,489.70x = 43,173,312,346,462.09 - Step 5: Solve for x
x = 43,173,312,346,462.09/10,352,489.70 - Step 6: Final answer
x = 4,170,331.35
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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.