Finding the Fourth Proportional to 358,181,107.20, 537,271,660.80 and 280,246,924.80
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Solution
The fourth proportional to 358,181,107.20, 537,271,660.80 and 280,246,924.80 is: 420,370,387.20
Step by Step Solution
- Step 1: Write the proportion equation
358,181,107.20 : 537,271,660.80 = 280,246,924.80 : x - Step 2: Convert to fraction form
358,181,107.20/537,271,660.80 = 280,246,924.80/x - Step 3: Cross multiply
358,181,107.20x = 537,271,660.80 × 280,246,924.80 - Step 4: Simplify right side
358,181,107.20x = 150,568,730,721,388,704 - Step 5: Solve for x
x = 150,568,730,721,388,704/358,181,107.20 - Step 6: Final answer
x = 420,370,387.20
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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.