Finding the Fourth Proportional to 4,146,912.30, 6,220,368.45 and 3,438,324.30
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Solution
The fourth proportional to 4,146,912.30, 6,220,368.45 and 3,438,324.30 is: 5,157,486.45
Step by Step Solution
- Step 1: Write the proportion equation
4,146,912.30 : 6,220,368.45 = 3,438,324.30 : x - Step 2: Convert to fraction form
4,146,912.30/6,220,368.45 = 3,438,324.30/x - Step 3: Cross multiply
4,146,912.30x = 6,220,368.45 × 3,438,324.30 - Step 4: Simplify right side
4,146,912.30x = 21,387,643,996,588.34 - Step 5: Solve for x
x = 21,387,643,996,588.34/4,146,912.30 - Step 6: Final answer
x = 5,157,486.45
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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.