Finding the Fourth Proportional to 2,018,283,505.20, 3,027,992,128.20 and 983,178,154.80
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Solution
The fourth proportional to 2,018,283,505.20, 3,027,992,128.20 and 983,178,154.80 is: 1,475,043,375.07
Step by Step Solution
- Step 1: Write the proportion equation
2,018,283,505.20 : 3,027,992,128.20 = 983,178,154.80 : x - Step 2: Convert to fraction form
2,018,283,505.20/3,027,992,128.20 = 983,178,154.80/x - Step 3: Cross multiply
2,018,283,505.20x = 3,027,992,128.20 × 983,178,154.80 - Step 4: Simplify right side
2,018,283,505.20x = 2,977,055,713,352,600,576 - Step 5: Solve for x
x = 2,977,055,713,352,600,576/2,018,283,505.20 - Step 6: Final answer
x = 1,475,043,375.07
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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.