Finding the Fourth Proportional to 170,831,999.20, 256,247,998.80 and 169,239,474.40
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Solution
The fourth proportional to 170,831,999.20, 256,247,998.80 and 169,239,474.40 is: 253,859,211.60
Step by Step Solution
- Step 1: Write the proportion equation
170,831,999.20 : 256,247,998.80 = 169,239,474.40 : x - Step 2: Convert to fraction form
170,831,999.20/256,247,998.80 = 169,239,474.40/x - Step 3: Cross multiply
170,831,999.20x = 256,247,998.80 × 169,239,474.40 - Step 4: Simplify right side
170,831,999.20x = 43,367,276,632,963,832 - Step 5: Solve for x
x = 43,367,276,632,963,832/170,831,999.20 - Step 6: Final answer
x = 253,859,211.60
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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.