Finding the Fourth Proportional to 370,755,844.40, 556,133,766.60 and 207,497,169.20
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Solution
The fourth proportional to 370,755,844.40, 556,133,766.60 and 207,497,169.20 is: 311,245,753.80
Step by Step Solution
- Step 1: Write the proportion equation
370,755,844.40 : 556,133,766.60 = 207,497,169.20 : x - Step 2: Convert to fraction form
370,755,844.40/556,133,766.60 = 207,497,169.20/x - Step 3: Cross multiply
370,755,844.40x = 556,133,766.60 × 207,497,169.20 - Step 4: Simplify right side
370,755,844.40x = 115,396,182,266,033,504 - Step 5: Solve for x
x = 115,396,182,266,033,504/370,755,844.40 - Step 6: Final answer
x = 311,245,753.80
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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.