Finding the Fourth Proportional to 351,858,310.74, 483,842,599.85 and 305,367,852.06
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Solution
The fourth proportional to 351,858,310.74, 483,842,599.85 and 305,367,852.06 is: 419,913,274.58
Step by Step Solution
- Step 1: Write the proportion equation
351,858,310.74 : 483,842,599.85 = 305,367,852.06 : x - Step 2: Convert to fraction form
351,858,310.74/483,842,599.85 = 305,367,852.06/x - Step 3: Cross multiply
351,858,310.74x = 483,842,599.85 × 305,367,852.06 - Step 4: Simplify right side
351,858,310.74x = 147,749,975,451,320,576 - Step 5: Solve for x
x = 147,749,975,451,320,576/351,858,310.74 - Step 6: Final answer
x = 419,913,274.58
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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.