Finding the Fourth Proportional to 400,170,671.60, 600,461,207.70 and 193,085,690.56
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Solution
The fourth proportional to 400,170,671.60, 600,461,207.70 and 193,085,690.56 is: 289,727,546.70
Step by Step Solution
- Step 1: Write the proportion equation
400,170,671.60 : 600,461,207.70 = 193,085,690.56 : x - Step 2: Convert to fraction form
400,170,671.60/600,461,207.70 = 193,085,690.56/x - Step 3: Cross multiply
400,170,671.60x = 600,461,207.70 × 193,085,690.56 - Step 4: Simplify right side
400,170,671.60x = 115,940,466,941,020,864 - Step 5: Solve for x
x = 115,940,466,941,020,864/400,170,671.60 - Step 6: Final answer
x = 289,727,546.70
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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.