Finding the Fourth Proportional to 12,097,128.70, 18,145,693.05 and 5,378,664.70
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Solution
The fourth proportional to 12,097,128.70, 18,145,693.05 and 5,378,664.70 is: 8,067,997.05
Step by Step Solution
- Step 1: Write the proportion equation
12,097,128.70 : 18,145,693.05 = 5,378,664.70 : x - Step 2: Convert to fraction form
12,097,128.70/18,145,693.05 = 5,378,664.70/x - Step 3: Cross multiply
12,097,128.70x = 18,145,693.05 × 5,378,664.70 - Step 4: Simplify right side
12,097,128.70x = 97,599,598,665,070.34 - Step 5: Solve for x
x = 97,599,598,665,070.34/12,097,128.70 - Step 6: Final answer
x = 8,067,997.05
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Similar ratio
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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.