Finding the Fourth Proportional to 317,844,648.20, 476,766,972.30 and 274,762,497.80
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Solution
The fourth proportional to 317,844,648.20, 476,766,972.30 and 274,762,497.80 is: 412,143,746.70
Step by Step Solution
- Step 1: Write the proportion equation
317,844,648.20 : 476,766,972.30 = 274,762,497.80 : x - Step 2: Convert to fraction form
317,844,648.20/476,766,972.30 = 274,762,497.80/x - Step 3: Cross multiply
317,844,648.20x = 476,766,972.30 × 274,762,497.80 - Step 4: Simplify right side
317,844,648.20x = 130,997,684,177,691,424 - Step 5: Solve for x
x = 130,997,684,177,691,424/317,844,648.20 - Step 6: Final answer
x = 412,143,746.70
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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.