Finding the Fourth Proportional to 1,379,451,246.21, 1,906,132,836.87 and 982,284,710.65
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Solution
The fourth proportional to 1,379,451,246.21, 1,906,132,836.87 and 982,284,710.65 is: 1,357,326,072.43
Step by Step Solution
- Step 1: Write the proportion equation
1,379,451,246.21 : 1,906,132,836.87 = 982,284,710.65 : x - Step 2: Convert to fraction form
1,379,451,246.21/1,906,132,836.87 = 982,284,710.65/x - Step 3: Cross multiply
1,379,451,246.21x = 1,906,132,836.87 × 982,284,710.65 - Step 4: Simplify right side
1,379,451,246.21x = 1,872,365,142,120,546,304 - Step 5: Solve for x
x = 1,872,365,142,120,546,304/1,379,451,246.21 - Step 6: Final answer
x = 1,357,326,072.43
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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.