Finding the Fourth Proportional to 111,366,186.24, 153,703,807.68 and 64,956,438.72
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Solution
The fourth proportional to 111,366,186.24, 153,703,807.68 and 64,956,438.72 is: 89,650,658.80
Step by Step Solution
- Step 1: Write the proportion equation
111,366,186.24 : 153,703,807.68 = 64,956,438.72 : x - Step 2: Convert to fraction form
111,366,186.24/153,703,807.68 = 64,956,438.72/x - Step 3: Cross multiply
111,366,186.24x = 153,703,807.68 × 64,956,438.72 - Step 4: Simplify right side
111,366,186.24x = 9,984,051,964,596,586 - Step 5: Solve for x
x = 9,984,051,964,596,586/111,366,186.24 - Step 6: Final answer
x = 89,650,658.80
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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.