Finding the Fourth Proportional to 215,318,745.70, 322,593,206.55 and 131,034,681.70
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Solution
The fourth proportional to 215,318,745.70, 322,593,206.55 and 131,034,681.70 is: 196,317,779.96
Step by Step Solution
- Step 1: Write the proportion equation
215,318,745.70 : 322,593,206.55 = 131,034,681.70 : x - Step 2: Convert to fraction form
215,318,745.70/322,593,206.55 = 131,034,681.70/x - Step 3: Cross multiply
215,318,745.70x = 322,593,206.55 × 131,034,681.70 - Step 4: Simplify right side
215,318,745.70x = 42,270,898,138,861,608 - Step 5: Solve for x
x = 42,270,898,138,861,608/215,318,745.70 - Step 6: Final answer
x = 196,317,779.96
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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.