Finding the Fourth Proportional to 494,769,502.49, 683,014,376.13 and 285,885,239.63
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Solution
The fourth proportional to 494,769,502.49, 683,014,376.13 and 285,885,239.63 is: 394,655,951.12
Step by Step Solution
- Step 1: Write the proportion equation
494,769,502.49 : 683,014,376.13 = 285,885,239.63 : x - Step 2: Convert to fraction form
494,769,502.49/683,014,376.13 = 285,885,239.63/x - Step 3: Cross multiply
494,769,502.49x = 683,014,376.13 × 285,885,239.63 - Step 4: Simplify right side
494,769,502.49x = 195,263,728,590,660,000 - Step 5: Solve for x
x = 195,263,728,590,660,000/494,769,502.49 - Step 6: Final answer
x = 394,655,951.12
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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.