Finding the Fourth Proportional to 5,379,248,325.20, 8,068,872,487.80 and 2,106,609,861.20
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Solution
The fourth proportional to 5,379,248,325.20, 8,068,872,487.80 and 2,106,609,861.20 is: 3,159,914,791.80
Step by Step Solution
- Step 1: Write the proportion equation
5,379,248,325.20 : 8,068,872,487.80 = 2,106,609,861.20 : x - Step 2: Convert to fraction form
5,379,248,325.20/8,068,872,487.80 = 2,106,609,861.20/x - Step 3: Cross multiply
5,379,248,325.20x = 8,068,872,487.80 × 2,106,609,861.20 - Step 4: Simplify right side
5,379,248,325.20x = 16,997,966,351,564,857,344 - Step 5: Solve for x
x = 16,997,966,351,564,857,344/5,379,248,325.20 - Step 6: Final answer
x = 3,159,914,791.80
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1.5x scale
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.