Finding the Fourth Proportional to 139,545,057.68, 192,568,781.04 and 76,820,645.84
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Solution
The fourth proportional to 139,545,057.68, 192,568,781.04 and 76,820,645.84 is: 106,010,620.33
Step by Step Solution
- Step 1: Write the proportion equation
139,545,057.68 : 192,568,781.04 = 76,820,645.84 : x - Step 2: Convert to fraction form
139,545,057.68/192,568,781.04 = 76,820,645.84/x - Step 3: Cross multiply
139,545,057.68x = 192,568,781.04 × 76,820,645.84 - Step 4: Simplify right side
139,545,057.68x = 14,793,258,128,114,346 - Step 5: Solve for x
x = 14,793,258,128,114,346/139,545,057.68 - Step 6: Final answer
x = 106,010,620.33
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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.