Finding the Fourth Proportional to 869,256,391.60, 1,303,436,689.80 and 323,717,114.80
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Solution
The fourth proportional to 869,256,391.60, 1,303,436,689.80 and 323,717,114.80 is: 485,408,872.02
Step by Step Solution
- Step 1: Write the proportion equation
869,256,391.60 : 1,303,436,689.80 = 323,717,114.80 : x - Step 2: Convert to fraction form
869,256,391.60/1,303,436,689.80 = 323,717,114.80/x - Step 3: Cross multiply
869,256,391.60x = 1,303,436,689.80 × 323,717,114.80 - Step 4: Simplify right side
869,256,391.60x = 421,944,764,546,518,592 - Step 5: Solve for x
x = 421,944,764,546,518,592/869,256,391.60 - Step 6: Final answer
x = 485,408,872.02
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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.