Finding the Fourth Proportional to 84,092,437.20, 126,138,655.80 and 82,675,261.20
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Solution
The fourth proportional to 84,092,437.20, 126,138,655.80 and 82,675,261.20 is: 124,012,891.80
Step by Step Solution
- Step 1: Write the proportion equation
84,092,437.20 : 126,138,655.80 = 82,675,261.20 : x - Step 2: Convert to fraction form
84,092,437.20/126,138,655.80 = 82,675,261.20/x - Step 3: Cross multiply
84,092,437.20x = 126,138,655.80 × 82,675,261.20 - Step 4: Simplify right side
84,092,437.20x = 10,428,546,315,681,896 - Step 5: Solve for x
x = 10,428,546,315,681,896/84,092,437.20 - Step 6: Final answer
x = 124,012,891.80
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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.