Finding the Fourth Proportional to 674,960,370.21, 1,011,895,716.24 and 620,479,368.09
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Solution
The fourth proportional to 674,960,370.21, 1,011,895,716.24 and 620,479,368.09 is: 930,218,191.02
Step by Step Solution
- Step 1: Write the proportion equation
674,960,370.21 : 1,011,895,716.24 = 620,479,368.09 : x - Step 2: Convert to fraction form
674,960,370.21/1,011,895,716.24 = 620,479,368.09/x - Step 3: Cross multiply
674,960,370.21x = 1,011,895,716.24 × 620,479,368.09 - Step 4: Simplify right side
674,960,370.21x = 627,860,414,585,573,248 - Step 5: Solve for x
x = 627,860,414,585,573,248/674,960,370.21 - Step 6: Final answer
x = 930,218,191.02
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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.