Finding the Fourth Proportional to 139,923,125.10, 193,094,583.99 and 77,199,219.50
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Solution
The fourth proportional to 139,923,125.10, 193,094,583.99 and 77,199,219.50 is: 106,535,293.30
Step by Step Solution
- Step 1: Write the proportion equation
139,923,125.10 : 193,094,583.99 = 77,199,219.50 : x - Step 2: Convert to fraction form
139,923,125.10/193,094,583.99 = 77,199,219.50/x - Step 3: Cross multiply
139,923,125.10x = 193,094,583.99 × 77,199,219.50 - Step 4: Simplify right side
139,923,125.10x = 14,906,751,172,450,228 - Step 5: Solve for x
x = 14,906,751,172,450,228/139,923,125.10 - Step 6: Final answer
x = 106,535,293.30
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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.