Finding the Fourth Proportional to 81,662,472.30, 122,493,708.45 and 36,224,266.80
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Solution
The fourth proportional to 81,662,472.30, 122,493,708.45 and 36,224,266.80 is: 54,336,400.20
Step by Step Solution
- Step 1: Write the proportion equation
81,662,472.30 : 122,493,708.45 = 36,224,266.80 : x - Step 2: Convert to fraction form
81,662,472.30/122,493,708.45 = 36,224,266.80/x - Step 3: Cross multiply
81,662,472.30x = 122,493,708.45 × 36,224,266.80 - Step 4: Simplify right side
81,662,472.30x = 4,437,244,776,214,214 - Step 5: Solve for x
x = 4,437,244,776,214,214/81,662,472.30 - Step 6: Final answer
x = 54,336,400.20
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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.