Finding the Fourth Proportional to 3,936,923.54, 5,432,954.44 and 2,126,087.54
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Solution
The fourth proportional to 3,936,923.54, 5,432,954.44 and 2,126,087.54 is: 2,934,000.77
Step by Step Solution
- Step 1: Write the proportion equation
3,936,923.54 : 5,432,954.44 = 2,126,087.54 : x - Step 2: Convert to fraction form
3,936,923.54/5,432,954.44 = 2,126,087.54/x - Step 3: Cross multiply
3,936,923.54x = 5,432,954.44 × 2,126,087.54 - Step 4: Simplify right side
3,936,923.54x = 11,550,936,702,476.47 - Step 5: Solve for x
x = 11,550,936,702,476.47/3,936,923.54 - Step 6: Final answer
x = 2,934,000.77
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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.