Finding the Fourth Proportional to 139,782,125.77, 192,899,918.17 and 77,056,847.12
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Solution
The fourth proportional to 139,782,125.77, 192,899,918.17 and 77,056,847.12 is: 106,338,771.30
Step by Step Solution
- Step 1: Write the proportion equation
139,782,125.77 : 192,899,918.17 = 77,056,847.12 : x - Step 2: Convert to fraction form
139,782,125.77/192,899,918.17 = 77,056,847.12/x - Step 3: Cross multiply
139,782,125.77x = 192,899,918.17 × 77,056,847.12 - Step 4: Simplify right side
139,782,125.77x = 14,864,259,503,886,200 - Step 5: Solve for x
x = 14,864,259,503,886,200/139,782,125.77 - Step 6: Final answer
x = 106,338,771.30
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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.