Finding the Fourth Proportional to 498,506,687.31, 747,091,628.67 and 387,975,825.99
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Solution
The fourth proportional to 498,506,687.31, 747,091,628.67 and 387,975,825.99 is: 581,443,537.47
Step by Step Solution
- Step 1: Write the proportion equation
498,506,687.31 : 747,091,628.67 = 387,975,825.99 : x - Step 2: Convert to fraction form
498,506,687.31/747,091,628.67 = 387,975,825.99/x - Step 3: Cross multiply
498,506,687.31x = 747,091,628.67 × 387,975,825.99 - Step 4: Simplify right side
498,506,687.31x = 289,853,491,723,457,600 - Step 5: Solve for x
x = 289,853,491,723,457,600/498,506,687.31 - Step 6: Final answer
x = 581,443,537.47
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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.