Finding the Fourth Proportional to 81,761,247.09, 122,674,588.17 and 33,242,830.29
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Solution
The fourth proportional to 81,761,247.09, 122,674,588.17 and 33,242,830.29 is: 49,877,547.87
Step by Step Solution
- Step 1: Write the proportion equation
81,761,247.09 : 122,674,588.17 = 33,242,830.29 : x - Step 2: Convert to fraction form
81,761,247.09/122,674,588.17 = 33,242,830.29/x - Step 3: Cross multiply
81,761,247.09x = 122,674,588.17 × 33,242,830.29 - Step 4: Simplify right side
81,761,247.09x = 4,078,050,515,430,951.50 - Step 5: Solve for x
x = 4,078,050,515,430,951.50/81,761,247.09 - Step 6: Final answer
x = 49,877,547.87
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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.