Finding the Fourth Proportional to 343,318,195.20, 514,977,292.80 and 305,904,748.80
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Solution
The fourth proportional to 343,318,195.20, 514,977,292.80 and 305,904,748.80 is: 458,857,123.20
Step by Step Solution
- Step 1: Write the proportion equation
343,318,195.20 : 514,977,292.80 = 305,904,748.80 : x - Step 2: Convert to fraction form
343,318,195.20/514,977,292.80 = 305,904,748.80/x - Step 3: Cross multiply
343,318,195.20x = 514,977,292.80 × 305,904,748.80 - Step 4: Simplify right side
343,318,195.20x = 157,533,999,391,688,064 - Step 5: Solve for x
x = 157,533,999,391,688,064/343,318,195.20 - Step 6: Final answer
x = 458,857,123.20
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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.