Finding the Fourth Proportional to 38,761,837.20, 53,493,718.14 and 21,358,177.88
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Solution
The fourth proportional to 38,761,837.20, 53,493,718.14 and 21,358,177.88 is: 29,475,598.42
Step by Step Solution
- Step 1: Write the proportion equation
38,761,837.20 : 53,493,718.14 = 21,358,177.88 : x - Step 2: Convert to fraction form
38,761,837.20/53,493,718.14 = 21,358,177.88/x - Step 3: Cross multiply
38,761,837.20x = 53,493,718.14 × 21,358,177.88 - Step 4: Simplify right side
38,761,837.20x = 1,142,528,347,229,234.25 - Step 5: Solve for x
x = 1,142,528,347,229,234.25/38,761,837.20 - Step 6: Final answer
x = 29,475,598.42
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.