Finding the Fourth Proportional to 2,799,468,251.20, 4,199,202,376.80 and 958,609,115.20
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Solution
The fourth proportional to 2,799,468,251.20, 4,199,202,376.80 and 958,609,115.20 is: 1,437,913,672.80
Step by Step Solution
- Step 1: Write the proportion equation
2,799,468,251.20 : 4,199,202,376.80 = 958,609,115.20 : x - Step 2: Convert to fraction form
2,799,468,251.20/4,199,202,376.80 = 958,609,115.20/x - Step 3: Cross multiply
2,799,468,251.20x = 4,199,202,376.80 × 958,609,115.20 - Step 4: Simplify right side
2,799,468,251.20x = 4,025,393,674,969,985,536 - Step 5: Solve for x
x = 4,025,393,674,969,985,536/2,799,468,251.20 - Step 6: Final answer
x = 1,437,913,672.80
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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.