Finding the Fourth Proportional to 414,781,979.72, 621,738,370.26 and 193,270,695.12
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Solution
The fourth proportional to 414,781,979.72, 621,738,370.26 and 193,270,695.12 is: 289,703,537.95
Step by Step Solution
- Step 1: Write the proportion equation
414,781,979.72 : 621,738,370.26 = 193,270,695.12 : x - Step 2: Convert to fraction form
414,781,979.72/621,738,370.26 = 193,270,695.12/x - Step 3: Cross multiply
414,781,979.72x = 621,738,370.26 × 193,270,695.12 - Step 4: Simplify right side
414,781,979.72x = 120,163,807,002,926,144 - Step 5: Solve for x
x = 120,163,807,002,926,144/414,781,979.72 - Step 6: Final answer
x = 289,703,537.95
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.