Finding the Fourth Proportional to 104,199,289.92, 143,799,820.56 and 57,786,778.08
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Solution
The fourth proportional to 104,199,289.92, 143,799,820.56 and 57,786,778.08 is: 79,748,415.99
Step by Step Solution
- Step 1: Write the proportion equation
104,199,289.92 : 143,799,820.56 = 57,786,778.08 : x - Step 2: Convert to fraction form
104,199,289.92/143,799,820.56 = 57,786,778.08/x - Step 3: Cross multiply
104,199,289.92x = 143,799,820.56 × 57,786,778.08 - Step 4: Simplify right side
104,199,289.92x = 8,309,728,318,644,541 - Step 5: Solve for x
x = 8,309,728,318,644,541/104,199,289.92 - Step 6: Final answer
x = 79,748,415.99
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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.