Finding the Fourth Proportional to 343,871,489.80, 515,807,234.70 and 303,560,705.80
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Solution
The fourth proportional to 343,871,489.80, 515,807,234.70 and 303,560,705.80 is: 455,341,058.70
Step by Step Solution
- Step 1: Write the proportion equation
343,871,489.80 : 515,807,234.70 = 303,560,705.80 : x - Step 2: Convert to fraction form
343,871,489.80/515,807,234.70 = 303,560,705.80/x - Step 3: Cross multiply
343,871,489.80x = 515,807,234.70 × 303,560,705.80 - Step 4: Simplify right side
343,871,489.80x = 156,578,808,222,278,240 - Step 5: Solve for x
x = 156,578,808,222,278,240/343,871,489.80 - Step 6: Final answer
x = 455,341,058.70
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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.