Finding the Fourth Proportional to 431,569,497.40, 647,354,246.10 and 158,883,839.80
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Solution
The fourth proportional to 431,569,497.40, 647,354,246.10 and 158,883,839.80 is: 238,325,759.70
Step by Step Solution
- Step 1: Write the proportion equation
431,569,497.40 : 647,354,246.10 = 158,883,839.80 : x - Step 2: Convert to fraction form
431,569,497.40/647,354,246.10 = 158,883,839.80/x - Step 3: Cross multiply
431,569,497.40x = 647,354,246.10 × 158,883,839.80 - Step 4: Simplify right side
431,569,497.40x = 102,854,128,331,202,192 - Step 5: Solve for x
x = 102,854,128,331,202,192/431,569,497.40 - Step 6: Final answer
x = 238,325,759.70
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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.