Finding the Fourth Proportional to 903,220,384.98, 1,354,895,878.03 and 378,061,318.99
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Solution
The fourth proportional to 903,220,384.98, 1,354,895,878.03 and 378,061,318.99 is: 567,119,311.37
Step by Step Solution
- Step 1: Write the proportion equation
903,220,384.98 : 1,354,895,878.03 = 378,061,318.99 : x - Step 2: Convert to fraction form
903,220,384.98/1,354,895,878.03 = 378,061,318.99/x - Step 3: Cross multiply
903,220,384.98x = 1,354,895,878.03 × 378,061,318.99 - Step 4: Simplify right side
903,220,384.98x = 512,233,722,743,942,912 - Step 5: Solve for x
x = 512,233,722,743,942,912/903,220,384.98 - Step 6: Final answer
x = 567,119,311.37
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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.