Finding the Fourth Proportional to 528,958,051.79, 791,710,553.97 and 388,861,423.79
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Solution
The fourth proportional to 528,958,051.79, 791,710,553.97 and 388,861,423.79 is: 582,022,888.59
Step by Step Solution
- Step 1: Write the proportion equation
528,958,051.79 : 791,710,553.97 = 388,861,423.79 : x - Step 2: Convert to fraction form
528,958,051.79/791,710,553.97 = 388,861,423.79/x - Step 3: Cross multiply
528,958,051.79x = 791,710,553.97 × 388,861,423.79 - Step 4: Simplify right side
528,958,051.79x = 307,865,693,242,385,344 - Step 5: Solve for x
x = 307,865,693,242,385,344/528,958,051.79 - Step 6: Final answer
x = 582,022,888.59
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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.