Finding the Fourth Proportional to 32,260,447.20, 48,390,670.80 and 20,781,321.60
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Solution
The fourth proportional to 32,260,447.20, 48,390,670.80 and 20,781,321.60 is: 31,171,982.40
Step by Step Solution
- Step 1: Write the proportion equation
32,260,447.20 : 48,390,670.80 = 20,781,321.60 : x - Step 2: Convert to fraction form
32,260,447.20/48,390,670.80 = 20,781,321.60/x - Step 3: Cross multiply
32,260,447.20x = 48,390,670.80 × 20,781,321.60 - Step 4: Simplify right side
32,260,447.20x = 1,005,622,092,334,529.25 - Step 5: Solve for x
x = 1,005,622,092,334,529.25/32,260,447.20 - Step 6: Final answer
x = 31,171,982.40
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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.