Finding the Fourth Proportional to 2,808,362,512.80, 4,212,543,769.20 and 1,430,867,440.80
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Solution
The fourth proportional to 2,808,362,512.80, 4,212,543,769.20 and 1,430,867,440.80 is: 2,146,301,161.20
Step by Step Solution
- Step 1: Write the proportion equation
2,808,362,512.80 : 4,212,543,769.20 = 1,430,867,440.80 : x - Step 2: Convert to fraction form
2,808,362,512.80/4,212,543,769.20 = 1,430,867,440.80/x - Step 3: Cross multiply
2,808,362,512.80x = 4,212,543,769.20 × 1,430,867,440.80 - Step 4: Simplify right side
2,808,362,512.80x = 6,027,591,722,293,189,632 - Step 5: Solve for x
x = 6,027,591,722,293,189,632/2,808,362,512.80 - Step 6: Final answer
x = 2,146,301,161.20
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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.