Finding the Fourth Proportional to 395,874,289.80, 593,960,733.90 and 191,583,217.80
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Solution
The fourth proportional to 395,874,289.80, 593,960,733.90 and 191,583,217.80 is: 287,447,079.99
Step by Step Solution
- Step 1: Write the proportion equation
395,874,289.80 : 593,960,733.90 = 191,583,217.80 : x - Step 2: Convert to fraction form
395,874,289.80/593,960,733.90 = 191,583,217.80/x - Step 3: Cross multiply
395,874,289.80x = 593,960,733.90 × 191,583,217.80 - Step 4: Simplify right side
395,874,289.80x = 113,792,908,647,411,552 - Step 5: Solve for x
x = 113,792,908,647,411,552/395,874,289.80 - Step 6: Final answer
x = 287,447,079.99
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1.5x scale
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.