Finding the Fourth Proportional to 455,293,939.23, 682,894,947.47 and 308,682,860.99
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Solution
The fourth proportional to 455,293,939.23, 682,894,947.47 and 308,682,860.99 is: 462,993,130.31
Step by Step Solution
- Step 1: Write the proportion equation
455,293,939.23 : 682,894,947.47 = 308,682,860.99 : x - Step 2: Convert to fraction form
455,293,939.23/682,894,947.47 = 308,682,860.99/x - Step 3: Cross multiply
455,293,939.23x = 682,894,947.47 × 308,682,860.99 - Step 4: Simplify right side
455,293,939.23x = 210,797,966,135,697,504 - Step 5: Solve for x
x = 210,797,966,135,697,504/455,293,939.23 - Step 6: Final answer
x = 462,993,130.31
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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.