Finding the Fourth Proportional to 1,819,181,753.20, 2,728,772,891.70 and 438,996,266.20
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Solution
The fourth proportional to 1,819,181,753.20, 2,728,772,891.70 and 438,996,266.20 is: 658,494,462.50
Step by Step Solution
- Step 1: Write the proportion equation
1,819,181,753.20 : 2,728,772,891.70 = 438,996,266.20 : x - Step 2: Convert to fraction form
1,819,181,753.20/2,728,772,891.70 = 438,996,266.20/x - Step 3: Cross multiply
1,819,181,753.20x = 2,728,772,891.70 × 438,996,266.20 - Step 4: Simplify right side
1,819,181,753.20x = 1,197,921,110,764,076,800 - Step 5: Solve for x
x = 1,197,921,110,764,076,800/1,819,181,753.20 - Step 6: Final answer
x = 658,494,462.50
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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.