Finding the Fourth Proportional to 139,519,351.56, 192,535,177.15 and 76,794,108.45
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Solution
The fourth proportional to 139,519,351.56, 192,535,177.15 and 76,794,108.45 is: 105,975,028.62
Step by Step Solution
- Step 1: Write the proportion equation
139,519,351.56 : 192,535,177.15 = 76,794,108.45 : x - Step 2: Convert to fraction form
139,519,351.56/192,535,177.15 = 76,794,108.45/x - Step 3: Cross multiply
139,519,351.56x = 192,535,177.15 × 76,794,108.45 - Step 4: Simplify right side
139,519,351.56x = 14,785,567,274,497,062 - Step 5: Solve for x
x = 14,785,567,274,497,062/139,519,351.56 - Step 6: Final answer
x = 105,975,028.62
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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.