Finding the Fourth Proportional to 39,245,613.53, 54,158,406.84 and 21,841,955.96
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Solution
The fourth proportional to 39,245,613.53, 54,158,406.84 and 21,841,955.96 is: 30,141,598.78
Step by Step Solution
- Step 1: Write the proportion equation
39,245,613.53 : 54,158,406.84 = 21,841,955.96 : x - Step 2: Convert to fraction form
39,245,613.53/54,158,406.84 = 21,841,955.96/x - Step 3: Cross multiply
39,245,613.53x = 54,158,406.84 × 21,841,955.96 - Step 4: Simplify right side
39,245,613.53x = 1,182,925,536,792,250.75 - Step 5: Solve for x
x = 1,182,925,536,792,250.75/39,245,613.53 - Step 6: Final answer
x = 30,141,598.78
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.