Finding the Fourth Proportional to 56,514,937.20, 84,772,405.80 and 20,164,372.80
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Solution
The fourth proportional to 56,514,937.20, 84,772,405.80 and 20,164,372.80 is: 30,246,559.20
Step by Step Solution
- Step 1: Write the proportion equation
56,514,937.20 : 84,772,405.80 = 20,164,372.80 : x - Step 2: Convert to fraction form
56,514,937.20/84,772,405.80 = 20,164,372.80/x - Step 3: Cross multiply
56,514,937.20x = 84,772,405.80 × 20,164,372.80 - Step 4: Simplify right side
56,514,937.20x = 1,709,382,393,704,082.25 - Step 5: Solve for x
x = 1,709,382,393,704,082.25/56,514,937.20 - Step 6: Final answer
x = 30,246,559.20
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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.