Finding the Fourth Proportional to 98,982,473.80, 148,473,710.70 and 66,733,846.60
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Solution
The fourth proportional to 98,982,473.80, 148,473,710.70 and 66,733,846.60 is: 100,100,769.90
Step by Step Solution
- Step 1: Write the proportion equation
98,982,473.80 : 148,473,710.70 = 66,733,846.60 : x - Step 2: Convert to fraction form
98,982,473.80/148,473,710.70 = 66,733,846.60/x - Step 3: Cross multiply
98,982,473.80x = 148,473,710.70 × 66,733,846.60 - Step 4: Simplify right side
98,982,473.80x = 9,908,221,833,986,578 - Step 5: Solve for x
x = 9,908,221,833,986,578/98,982,473.80 - Step 6: Final answer
x = 100,100,769.90
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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.