Finding the Fourth Proportional to 6,128,155.06, 8,456,580.75 and 3,512,783.80
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Solution
The fourth proportional to 6,128,155.06, 8,456,580.75 and 3,512,783.80 is: 4,847,485.02
Step by Step Solution
- Step 1: Write the proportion equation
6,128,155.06 : 8,456,580.75 = 3,512,783.80 : x - Step 2: Convert to fraction form
6,128,155.06/8,456,580.75 = 3,512,783.80/x - Step 3: Cross multiply
6,128,155.06x = 8,456,580.75 × 3,512,783.80 - Step 4: Simplify right side
6,128,155.06x = 29,706,139,861,991.85 - Step 5: Solve for x
x = 29,706,139,861,991.85/6,128,155.06 - Step 6: Final answer
x = 4,847,485.02
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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.