Finding the Fourth Proportional to 2,799,468,149.20, 4,199,202,223.80 and 958,609,013.20
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Solution
The fourth proportional to 2,799,468,149.20, 4,199,202,223.80 and 958,609,013.20 is: 1,437,913,519.80
Step by Step Solution
- Step 1: Write the proportion equation
2,799,468,149.20 : 4,199,202,223.80 = 958,609,013.20 : x - Step 2: Convert to fraction form
2,799,468,149.20/4,199,202,223.80 = 958,609,013.20/x - Step 3: Cross multiply
2,799,468,149.20x = 4,199,202,223.80 × 958,609,013.20 - Step 4: Simplify right side
2,799,468,149.20x = 4,025,393,099,984,163,840 - Step 5: Solve for x
x = 4,025,393,099,984,163,840/2,799,468,149.20 - Step 6: Final answer
x = 1,437,913,519.80
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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.