Finding the Fourth Proportional to 80,831,291.80, 121,246,937.70 and 48,582,664.60
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Solution
The fourth proportional to 80,831,291.80, 121,246,937.70 and 48,582,664.60 is: 72,873,996.90
Step by Step Solution
- Step 1: Write the proportion equation
80,831,291.80 : 121,246,937.70 = 48,582,664.60 : x - Step 2: Convert to fraction form
80,831,291.80/121,246,937.70 = 48,582,664.60/x - Step 3: Cross multiply
80,831,291.80x = 121,246,937.70 × 48,582,664.60 - Step 4: Simplify right side
80,831,291.80x = 5,890,499,308,056,196 - Step 5: Solve for x
x = 5,890,499,308,056,196/80,831,291.80 - Step 6: Final answer
x = 72,873,996.90
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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.