Finding the Fourth Proportional to 5,138,266.09, 7,704,985.31 and 2,979,904.55
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Solution
The fourth proportional to 5,138,266.09, 7,704,985.31 and 2,979,904.55 is: 4,468,456.94
Step by Step Solution
- Step 1: Write the proportion equation
5,138,266.09 : 7,704,985.31 = 2,979,904.55 : x - Step 2: Convert to fraction form
5,138,266.09/7,704,985.31 = 2,979,904.55/x - Step 3: Cross multiply
5,138,266.09x = 7,704,985.31 × 2,979,904.55 - Step 4: Simplify right side
5,138,266.09x = 22,960,120,782,952.16 - Step 5: Solve for x
x = 22,960,120,782,952.16/5,138,266.09 - Step 6: Final answer
x = 4,468,456.94
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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.