Finding the Fourth Proportional to 385,030,029.24, 531,409,358.46 and 228,483,453.84
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Solution
The fourth proportional to 385,030,029.24, 531,409,358.46 and 228,483,453.84 is: 315,347,470.08
Step by Step Solution
- Step 1: Write the proportion equation
385,030,029.24 : 531,409,358.46 = 228,483,453.84 : x - Step 2: Convert to fraction form
385,030,029.24/531,409,358.46 = 228,483,453.84/x - Step 3: Cross multiply
385,030,029.24x = 531,409,358.46 × 228,483,453.84 - Step 4: Simplify right side
385,030,029.24x = 121,418,245,623,839,424 - Step 5: Solve for x
x = 121,418,245,623,839,424/385,030,029.24 - Step 6: Final answer
x = 315,347,470.08
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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.