Finding the Fourth Proportional to 84,912,163.20, 127,368,244.80 and 83,494,987.20
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Solution
The fourth proportional to 84,912,163.20, 127,368,244.80 and 83,494,987.20 is: 125,242,480.80
Step by Step Solution
- Step 1: Write the proportion equation
84,912,163.20 : 127,368,244.80 = 83,494,987.20 : x - Step 2: Convert to fraction form
84,912,163.20/127,368,244.80 = 83,494,987.20/x - Step 3: Cross multiply
84,912,163.20x = 127,368,244.80 × 83,494,987.20 - Step 4: Simplify right side
84,912,163.20x = 10,634,609,969,262,466 - Step 5: Solve for x
x = 10,634,609,969,262,466/84,912,163.20 - Step 6: Final answer
x = 125,242,480.80
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Similar ratio
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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.