Finding the Fourth Proportional to 18,127,927.20, 27,135,903.60 and 10,532,330.40
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Solution
The fourth proportional to 18,127,927.20, 27,135,903.60 and 10,532,330.40 is: 15,765,967.02
Step by Step Solution
- Step 1: Write the proportion equation
18,127,927.20 : 27,135,903.60 = 10,532,330.40 : x - Step 2: Convert to fraction form
18,127,927.20/27,135,903.60 = 10,532,330.40/x - Step 3: Cross multiply
18,127,927.20x = 27,135,903.60 × 10,532,330.40 - Step 4: Simplify right side
18,127,927.20x = 285,804,302,417,749.44 - Step 5: Solve for x
x = 285,804,302,417,749.44/18,127,927.20 - Step 6: Final answer
x = 15,765,967.02
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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.