Finding the Fourth Proportional to 38,523,918.60, 53,162,994.84 and 21,119,890.14
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Solution
The fourth proportional to 38,523,918.60, 53,162,994.84 and 21,119,890.14 is: 29,145,441.36
Step by Step Solution
- Step 1: Write the proportion equation
38,523,918.60 : 53,162,994.84 = 21,119,890.14 : x - Step 2: Convert to fraction form
38,523,918.60/53,162,994.84 = 21,119,890.14/x - Step 3: Cross multiply
38,523,918.60x = 53,162,994.84 × 21,119,890.14 - Step 4: Simplify right side
38,523,918.60x = 1,122,796,610,534,187 - Step 5: Solve for x
x = 1,122,796,610,534,187/38,523,918.60 - Step 6: Final answer
x = 29,145,441.36
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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.