Finding the Fourth Proportional to 86,769,016.40, 119,899,684.68 and 63,206,544.08
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Solution
The fourth proportional to 86,769,016.40, 119,899,684.68 and 63,206,544.08 is: 87,340,447.31
Step by Step Solution
- Step 1: Write the proportion equation
86,769,016.40 : 119,899,684.68 = 63,206,544.08 : x - Step 2: Convert to fraction form
86,769,016.40/119,899,684.68 = 63,206,544.08/x - Step 3: Cross multiply
86,769,016.40x = 119,899,684.68 × 63,206,544.08 - Step 4: Simplify right side
86,769,016.40x = 7,578,444,704,904,521 - Step 5: Solve for x
x = 7,578,444,704,904,521/86,769,016.40 - Step 6: Final answer
x = 87,340,447.31
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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.