Finding the Fourth Proportional to 80,831,042.80, 121,246,564.20 and 48,582,415.60
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Solution
The fourth proportional to 80,831,042.80, 121,246,564.20 and 48,582,415.60 is: 72,873,623.40
Step by Step Solution
- Step 1: Write the proportion equation
80,831,042.80 : 121,246,564.20 = 48,582,415.60 : x - Step 2: Convert to fraction form
80,831,042.80/121,246,564.20 = 48,582,415.60/x - Step 3: Cross multiply
80,831,042.80x = 121,246,564.20 × 48,582,415.60 - Step 4: Simplify right side
80,831,042.80x = 5,890,450,972,036,482 - Step 5: Solve for x
x = 5,890,450,972,036,482/80,831,042.80 - Step 6: Final answer
x = 72,873,623.40
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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.