Finding the Fourth Proportional to 211,773,765.80, 317,660,648.70 and 96,982,509.80
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Solution
The fourth proportional to 211,773,765.80, 317,660,648.70 and 96,982,509.80 is: 145,473,764.70
Step by Step Solution
- Step 1: Write the proportion equation
211,773,765.80 : 317,660,648.70 = 96,982,509.80 : x - Step 2: Convert to fraction form
211,773,765.80/317,660,648.70 = 96,982,509.80/x - Step 3: Cross multiply
211,773,765.80x = 317,660,648.70 × 96,982,509.80 - Step 4: Simplify right side
211,773,765.80x = 30,807,526,975,622,104 - Step 5: Solve for x
x = 30,807,526,975,622,104/211,773,765.80 - Step 6: Final answer
x = 145,473,764.70
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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.