Finding the Fourth Proportional to 621,076,804.62, 931,265,631.99 and 206,331,587.70
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Solution
The fourth proportional to 621,076,804.62, 931,265,631.99 and 206,331,587.70 is: 309,381,247.20
Step by Step Solution
- Step 1: Write the proportion equation
621,076,804.62 : 931,265,631.99 = 206,331,587.70 : x - Step 2: Convert to fraction form
621,076,804.62/931,265,631.99 = 206,331,587.70/x - Step 3: Cross multiply
621,076,804.62x = 931,265,631.99 × 206,331,587.70 - Step 4: Simplify right side
621,076,804.62x = 192,149,516,418,940,608 - Step 5: Solve for x
x = 192,149,516,418,940,608/621,076,804.62 - Step 6: Final answer
x = 309,381,247.20
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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.