Finding the Fourth Proportional to 103,985,536.68, 143,508,119.94 and 57,580,108.20
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Solution
The fourth proportional to 103,985,536.68, 143,508,119.94 and 57,580,108.20 is: 79,465,023.09
Step by Step Solution
- Step 1: Write the proportion equation
103,985,536.68 : 143,508,119.94 = 57,580,108.20 : x - Step 2: Convert to fraction form
103,985,536.68/143,508,119.94 = 57,580,108.20/x - Step 3: Cross multiply
103,985,536.68x = 143,508,119.94 × 57,580,108.20 - Step 4: Simplify right side
103,985,536.68x = 8,263,213,073,723,778 - Step 5: Solve for x
x = 8,263,213,073,723,778/103,985,536.68 - Step 6: Final answer
x = 79,465,023.09
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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.