Finding the Fourth Proportional to 4,146,719.80, 6,220,079.70 and 3,438,131.80
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Solution
The fourth proportional to 4,146,719.80, 6,220,079.70 and 3,438,131.80 is: 5,157,197.70
Step by Step Solution
- Step 1: Write the proportion equation
4,146,719.80 : 6,220,079.70 = 3,438,131.80 : x - Step 2: Convert to fraction form
4,146,719.80/6,220,079.70 = 3,438,131.80/x - Step 3: Cross multiply
4,146,719.80x = 6,220,079.70 × 3,438,131.80 - Step 4: Simplify right side
4,146,719.80x = 21,385,453,815,104.46 - Step 5: Solve for x
x = 21,385,453,815,104.46/4,146,719.80 - Step 6: Final answer
x = 5,157,197.70
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1.5x scale
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.