Finding the Fourth Proportional to 655,099,446.80, 982,649,170.20 and 310,725,678.80
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Solution
The fourth proportional to 655,099,446.80, 982,649,170.20 and 310,725,678.80 is: 466,088,518.20
Step by Step Solution
- Step 1: Write the proportion equation
655,099,446.80 : 982,649,170.20 = 310,725,678.80 : x - Step 2: Convert to fraction form
655,099,446.80/982,649,170.20 = 310,725,678.80/x - Step 3: Cross multiply
655,099,446.80x = 982,649,170.20 × 310,725,678.80 - Step 4: Simplify right side
655,099,446.80x = 305,334,330,432,651,776 - Step 5: Solve for x
x = 305,334,330,432,651,776/655,099,446.80 - Step 6: Final answer
x = 466,088,518.20
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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.