Finding the Fourth Proportional to 129,230,492.80, 193,845,739.20 and 124,128,659.20
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Solution
The fourth proportional to 129,230,492.80, 193,845,739.20 and 124,128,659.20 is: 186,192,988.80
Step by Step Solution
- Step 1: Write the proportion equation
129,230,492.80 : 193,845,739.20 = 124,128,659.20 : x - Step 2: Convert to fraction form
129,230,492.80/193,845,739.20 = 124,128,659.20/x - Step 3: Cross multiply
129,230,492.80x = 193,845,739.20 × 124,128,659.20 - Step 4: Simplify right side
129,230,492.80x = 24,061,811,698,528,880 - Step 5: Solve for x
x = 24,061,811,698,528,880/129,230,492.80 - Step 6: Final answer
x = 186,192,988.80
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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.