Finding the Fourth Proportional to 923,542,381.70, 1,274,472,734.84 and 500,152,602.59
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Solution
The fourth proportional to 923,542,381.70, 1,274,472,734.84 and 500,152,602.59 is: 690,202,060.99
Step by Step Solution
- Step 1: Write the proportion equation
923,542,381.70 : 1,274,472,734.84 = 500,152,602.59 : x - Step 2: Convert to fraction form
923,542,381.70/1,274,472,734.84 = 500,152,602.59/x - Step 3: Cross multiply
923,542,381.70x = 1,274,472,734.84 × 500,152,602.59 - Step 4: Simplify right side
923,542,381.70x = 637,430,855,253,848,576 - Step 5: Solve for x
x = 637,430,855,253,848,576/923,542,381.70 - Step 6: Final answer
x = 690,202,060.99
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1.5x scale
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.