Finding the Fourth Proportional to 39,203,764.59, 54,156,518.33 and 31,415,016.99
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Solution
The fourth proportional to 39,203,764.59, 54,156,518.33 and 31,415,016.99 is: 43,397,055.39
Step by Step Solution
- Step 1: Write the proportion equation
39,203,764.59 : 54,156,518.33 = 31,415,016.99 : x - Step 2: Convert to fraction form
39,203,764.59/54,156,518.33 = 31,415,016.99/x - Step 3: Cross multiply
39,203,764.59x = 54,156,518.33 × 31,415,016.99 - Step 4: Simplify right side
39,203,764.59x = 1,701,327,943,299,121.25 - Step 5: Solve for x
x = 1,701,327,943,299,121.25/39,203,764.59 - Step 6: Final answer
x = 43,397,055.39
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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.