Finding the Fourth Proportional to 512,379,193.05, 706,554,815.36 and 438,285,047.31
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Solution
The fourth proportional to 512,379,193.05, 706,554,815.36 and 438,285,047.31 is: 604,381,315.39
Step by Step Solution
- Step 1: Write the proportion equation
512,379,193.05 : 706,554,815.36 = 438,285,047.31 : x - Step 2: Convert to fraction form
512,379,193.05/706,554,815.36 = 438,285,047.31/x - Step 3: Cross multiply
512,379,193.05x = 706,554,815.36 × 438,285,047.31 - Step 4: Simplify right side
512,379,193.05x = 309,672,410,674,974,528 - Step 5: Solve for x
x = 309,672,410,674,974,528/512,379,193.05 - Step 6: Final answer
x = 604,381,315.39
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.