Finding the Fourth Proportional to 5,370,469.20, 8,060,110.20 and 5,328,478.80
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Solution
The fourth proportional to 5,370,469.20, 8,060,110.20 and 5,328,478.80 is: 7,997,090.15
Step by Step Solution
- Step 1: Write the proportion equation
5,370,469.20 : 8,060,110.20 = 5,328,478.80 : x - Step 2: Convert to fraction form
5,370,469.20/8,060,110.20 = 5,328,478.80/x - Step 3: Cross multiply
5,370,469.20x = 8,060,110.20 × 5,328,478.80 - Step 4: Simplify right side
5,370,469.20x = 42,948,126,326,363.76 - Step 5: Solve for x
x = 42,948,126,326,363.76/5,370,469.20 - Step 6: Final answer
x = 7,997,090.15
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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.