Finding the Fourth Proportional to 28,662,475.11, 42,951,197.35 and 21,052,239.99
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Solution
The fourth proportional to 28,662,475.11, 42,951,197.35 and 21,052,239.99 is: 31,547,133.00
Step by Step Solution
- Step 1: Write the proportion equation
28,662,475.11 : 42,951,197.35 = 21,052,239.99 : x - Step 2: Convert to fraction form
28,662,475.11/42,951,197.35 = 21,052,239.99/x - Step 3: Cross multiply
28,662,475.11x = 42,951,197.35 × 21,052,239.99 - Step 4: Simplify right side
28,662,475.11x = 904,218,914,364,790.75 - Step 5: Solve for x
x = 904,218,914,364,790.75/28,662,475.11 - Step 6: Final answer
x = 31,547,133.00
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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.