Finding the Fourth Proportional to 6,440,558.97, 8,887,990.78 and 3,540,247.05
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Solution
The fourth proportional to 6,440,558.97, 8,887,990.78 and 3,540,247.05 is: 4,885,551.60
Step by Step Solution
- Step 1: Write the proportion equation
6,440,558.97 : 8,887,990.78 = 3,540,247.05 : x - Step 2: Convert to fraction form
6,440,558.97/8,887,990.78 = 3,540,247.05/x - Step 3: Cross multiply
6,440,558.97x = 8,887,990.78 × 3,540,247.05 - Step 4: Simplify right side
6,440,558.97x = 31,465,683,177,077.47 - Step 5: Solve for x
x = 31,465,683,177,077.47/6,440,558.97 - Step 6: Final answer
x = 4,885,551.60
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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.