Finding the Fourth Proportional to 903,220,385.40, 1,354,895,878.66 and 378,061,319.41
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Solution
The fourth proportional to 903,220,385.40, 1,354,895,878.66 and 378,061,319.41 is: 567,119,311.99
Step by Step Solution
- Step 1: Write the proportion equation
903,220,385.40 : 1,354,895,878.66 = 378,061,319.41 : x - Step 2: Convert to fraction form
903,220,385.40/1,354,895,878.66 = 378,061,319.41/x - Step 3: Cross multiply
903,220,385.40x = 1,354,895,878.66 × 378,061,319.41 - Step 4: Simplify right side
903,220,385.40x = 512,233,723,545,038,528 - Step 5: Solve for x
x = 512,233,723,545,038,528/903,220,385.40 - Step 6: Final answer
x = 567,119,311.99
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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.