Finding the Fourth Proportional to 921,678,568.12, 1,382,519,251.50 and 376,420,102.12
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Solution
The fourth proportional to 921,678,568.12, 1,382,519,251.50 and 376,420,102.12 is: 564,630,724.67
Step by Step Solution
- Step 1: Write the proportion equation
921,678,568.12 : 1,382,519,251.50 = 376,420,102.12 : x - Step 2: Convert to fraction form
921,678,568.12/1,382,519,251.50 = 376,420,102.12/x - Step 3: Cross multiply
921,678,568.12x = 1,382,519,251.50 × 376,420,102.12 - Step 4: Simplify right side
921,678,568.12x = 520,408,037,832,496,000 - Step 5: Solve for x
x = 520,408,037,832,496,000/921,678,568.12 - Step 6: Final answer
x = 564,630,724.67
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1.5x scale
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.