Finding the Fourth Proportional to 640,224,808.24, 883,239,694.14 and 428,599,816.42
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Solution
The fourth proportional to 640,224,808.24, 883,239,694.14 and 428,599,816.42 is: 591,286,632.28
Step by Step Solution
- Step 1: Write the proportion equation
640,224,808.24 : 883,239,694.14 = 428,599,816.42 : x - Step 2: Convert to fraction form
640,224,808.24/883,239,694.14 = 428,599,816.42/x - Step 3: Cross multiply
640,224,808.24x = 883,239,694.14 × 428,599,816.42 - Step 4: Simplify right side
640,224,808.24x = 378,556,370,763,260,928 - Step 5: Solve for x
x = 378,556,370,763,260,928/640,224,808.24 - Step 6: Final answer
x = 591,286,632.28
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1.5x scale
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.