Finding the Fourth Proportional to 5,430,067.90, 8,146,023.45 and 1,643,520.70
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Solution
The fourth proportional to 5,430,067.90, 8,146,023.45 and 1,643,520.70 is: 2,465,559.99
Step by Step Solution
- Step 1: Write the proportion equation
5,430,067.90 : 8,146,023.45 = 1,643,520.70 : x - Step 2: Convert to fraction form
5,430,067.90/8,146,023.45 = 1,643,520.70/x - Step 3: Cross multiply
5,430,067.90x = 8,146,023.45 × 1,643,520.70 - Step 4: Simplify right side
5,430,067.90x = 13,388,158,162,760.41 - Step 5: Solve for x
x = 13,388,158,162,760.41/5,430,067.90 - Step 6: Final answer
x = 2,465,559.99
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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.