Finding the Fourth Proportional to 3,982,720,140.80, 5,974,080,211.20 and 1,074,670,323.20
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Solution
The fourth proportional to 3,982,720,140.80, 5,974,080,211.20 and 1,074,670,323.20 is: 1,612,005,484.80
Step by Step Solution
- Step 1: Write the proportion equation
3,982,720,140.80 : 5,974,080,211.20 = 1,074,670,323.20 : x - Step 2: Convert to fraction form
3,982,720,140.80/5,974,080,211.20 = 1,074,670,323.20/x - Step 3: Cross multiply
3,982,720,140.80x = 5,974,080,211.20 × 1,074,670,323.20 - Step 4: Simplify right side
3,982,720,140.80x = 6,420,166,711,393,028,096 - Step 5: Solve for x
x = 6,420,166,711,393,028,096/3,982,720,140.80 - Step 6: Final answer
x = 1,612,005,484.80
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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.