Finding the Fourth Proportional to 99,414,472.18, 137,121,301.28 and 66,358,054.66
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Solution
The fourth proportional to 99,414,472.18, 137,121,301.28 and 66,358,054.66 is: 91,526,943.77
Step by Step Solution
- Step 1: Write the proportion equation
99,414,472.18 : 137,121,301.28 = 66,358,054.66 : x - Step 2: Convert to fraction form
99,414,472.18/137,121,301.28 = 66,358,054.66/x - Step 3: Cross multiply
99,414,472.18x = 137,121,301.28 × 66,358,054.66 - Step 4: Simplify right side
99,414,472.18x = 9,099,102,805,388,568 - Step 5: Solve for x
x = 9,099,102,805,388,568/99,414,472.18 - Step 6: Final answer
x = 91,526,943.77
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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.