Finding the Fourth Proportional to 358,208,772.40, 537,313,158.60 and 131,244,497.20
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Solution
The fourth proportional to 358,208,772.40, 537,313,158.60 and 131,244,497.20 is: 196,866,745.80
Step by Step Solution
- Step 1: Write the proportion equation
358,208,772.40 : 537,313,158.60 = 131,244,497.20 : x - Step 2: Convert to fraction form
358,208,772.40/537,313,158.60 = 131,244,497.20/x - Step 3: Cross multiply
358,208,772.40x = 537,313,158.60 × 131,244,497.20 - Step 4: Simplify right side
358,208,772.40x = 70,519,395,339,400,864 - Step 5: Solve for x
x = 70,519,395,339,400,864/358,208,772.40 - Step 6: Final answer
x = 196,866,745.80
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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.