Finding the Fourth Proportional to 6,660,292.57, 9,190,221.05 and 3,905,940.12
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Solution
The fourth proportional to 6,660,292.57, 9,190,221.05 and 3,905,940.12 is: 5,389,621.06
Step by Step Solution
- Step 1: Write the proportion equation
6,660,292.57 : 9,190,221.05 = 3,905,940.12 : x - Step 2: Convert to fraction form
6,660,292.57/9,190,221.05 = 3,905,940.12/x - Step 3: Cross multiply
6,660,292.57x = 9,190,221.05 × 3,905,940.12 - Step 4: Simplify right side
6,660,292.57x = 35,896,453,086,165.05 - Step 5: Solve for x
x = 35,896,453,086,165.05/6,660,292.57 - Step 6: Final answer
x = 5,389,621.06
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.