Finding the Fourth Proportional to 863,136,266.70, 1,294,704,400.05 and 784,057,845.90
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Solution
The fourth proportional to 863,136,266.70, 1,294,704,400.05 and 784,057,845.90 is: 1,176,086,768.85
Step by Step Solution
- Step 1: Write the proportion equation
863,136,266.70 : 1,294,704,400.05 = 784,057,845.90 : x - Step 2: Convert to fraction form
863,136,266.70/1,294,704,400.05 = 784,057,845.90/x - Step 3: Cross multiply
863,136,266.70x = 1,294,704,400.05 × 784,057,845.90 - Step 4: Simplify right side
863,136,266.70x = 1,015,123,142,980,454,784 - Step 5: Solve for x
x = 1,015,123,142,980,454,784/863,136,266.70 - Step 6: Final answer
x = 1,176,086,768.85
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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.