Finding the Fourth Proportional to 38,493,647.28, 53,121,232.08 and 21,090,651.84
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Solution
The fourth proportional to 38,493,647.28, 53,121,232.08 and 21,090,651.84 is: 29,105,098.90
Step by Step Solution
- Step 1: Write the proportion equation
38,493,647.28 : 53,121,232.08 = 21,090,651.84 : x - Step 2: Convert to fraction form
38,493,647.28/53,121,232.08 = 21,090,651.84/x - Step 3: Cross multiply
38,493,647.28x = 53,121,232.08 × 21,090,651.84 - Step 4: Simplify right side
38,493,647.28x = 1,120,361,411,111,119 - Step 5: Solve for x
x = 1,120,361,411,111,119/38,493,647.28 - Step 6: Final answer
x = 29,105,098.90
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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.