Finding the Fourth Proportional to 13,127,755.52, 18,121,267.59 and 9,873,966.48
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Solution
The fourth proportional to 13,127,755.52, 18,121,267.59 and 9,873,966.48 is: 13,629,808.12
Step by Step Solution
- Step 1: Write the proportion equation
13,127,755.52 : 18,121,267.59 = 9,873,966.48 : x - Step 2: Convert to fraction form
13,127,755.52/18,121,267.59 = 9,873,966.48/x - Step 3: Cross multiply
13,127,755.52x = 18,121,267.59 × 9,873,966.48 - Step 4: Simplify right side
13,127,755.52x = 178,928,788,758,770.38 - Step 5: Solve for x
x = 178,928,788,758,770.38/13,127,755.52 - Step 6: Final answer
x = 13,629,808.12
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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.