Finding the Fourth Proportional to 12,582,490.80, 18,887,927.40 and 8,330,962.80
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Solution
The fourth proportional to 12,582,490.80, 18,887,927.40 and 8,330,962.80 is: 12,505,840.30
Step by Step Solution
- Step 1: Write the proportion equation
12,582,490.80 : 18,887,927.40 = 8,330,962.80 : x - Step 2: Convert to fraction form
12,582,490.80/18,887,927.40 = 8,330,962.80/x - Step 3: Cross multiply
12,582,490.80x = 18,887,927.40 × 8,330,962.80 - Step 4: Simplify right side
12,582,490.80x = 157,354,620,538,500.72 - Step 5: Solve for x
x = 157,354,620,538,500.72/12,582,490.80 - Step 6: Final answer
x = 12,505,840.30
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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.