Finding the Fourth Proportional to 20,534,101.06, 30,831,430.20 and 11,453,939.50
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Solution
The fourth proportional to 20,534,101.06, 30,831,430.20 and 11,453,939.50 is: 17,197,798.69
Step by Step Solution
- Step 1: Write the proportion equation
20,534,101.06 : 30,831,430.20 = 11,453,939.50 : x - Step 2: Convert to fraction form
20,534,101.06/30,831,430.20 = 11,453,939.50/x - Step 3: Cross multiply
20,534,101.06x = 30,831,430.20 × 11,453,939.50 - Step 4: Simplify right side
20,534,101.06x = 353,141,336,209,272.88 - Step 5: Solve for x
x = 353,141,336,209,272.88/20,534,101.06 - Step 6: Final answer
x = 17,197,798.69
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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.