Finding the Fourth Proportional to 392,911,660.80, 588,233,750.40 and 347,562,028.80
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Solution
The fourth proportional to 392,911,660.80, 588,233,750.40 and 347,562,028.80 is: 520,340,158.09
Step by Step Solution
- Step 1: Write the proportion equation
392,911,660.80 : 588,233,750.40 = 347,562,028.80 : x - Step 2: Convert to fraction form
392,911,660.80/588,233,750.40 = 347,562,028.80/x - Step 3: Cross multiply
392,911,660.80x = 588,233,750.40 × 347,562,028.80 - Step 4: Simplify right side
392,911,660.80x = 204,447,715,697,656,800 - Step 5: Solve for x
x = 204,447,715,697,656,800/392,911,660.80 - Step 6: Final answer
x = 520,340,158.09
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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.