Finding the Fourth Proportional to 618,409,668.20, 927,726,476.70 and 310,927,965.80
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Solution
The fourth proportional to 618,409,668.20, 927,726,476.70 and 310,927,965.80 is: 466,448,247.90
Step by Step Solution
- Step 1: Write the proportion equation
618,409,668.20 : 927,726,476.70 = 310,927,965.80 : x - Step 2: Convert to fraction form
618,409,668.20/927,726,476.70 = 310,927,965.80/x - Step 3: Cross multiply
618,409,668.20x = 927,726,476.70 × 310,927,965.80 - Step 4: Simplify right side
618,409,668.20x = 288,456,106,219,132,096 - Step 5: Solve for x
x = 288,456,106,219,132,096/618,409,668.20 - Step 6: Final answer
x = 466,448,247.90
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.