Finding the Fourth Proportional to 98,802,805.41, 136,409,847.37 and 63,581,804.38
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Solution
The fourth proportional to 98,802,805.41, 136,409,847.37 and 63,581,804.38 is: 87,782,772.92
Step by Step Solution
- Step 1: Write the proportion equation
98,802,805.41 : 136,409,847.37 = 63,581,804.38 : x - Step 2: Convert to fraction form
98,802,805.41/136,409,847.37 = 63,581,804.38/x - Step 3: Cross multiply
98,802,805.41x = 136,409,847.37 × 63,581,804.38 - Step 4: Simplify right side
98,802,805.41x = 8,673,184,230,984,998 - Step 5: Solve for x
x = 8,673,184,230,984,998/98,802,805.41 - Step 6: Final answer
x = 87,782,772.92
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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.