Finding the Fourth Proportional to 2,640,293,881.70, 3,960,440,822.55 and 2,214,131,343.80
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Solution
The fourth proportional to 2,640,293,881.70, 3,960,440,822.55 and 2,214,131,343.80 is: 3,321,197,015.70
Step by Step Solution
- Step 1: Write the proportion equation
2,640,293,881.70 : 3,960,440,822.55 = 2,214,131,343.80 : x - Step 2: Convert to fraction form
2,640,293,881.70/3,960,440,822.55 = 2,214,131,343.80/x - Step 3: Cross multiply
2,640,293,881.70x = 3,960,440,822.55 × 2,214,131,343.80 - Step 4: Simplify right side
2,640,293,881.70x = 8,768,936,160,473,010,176 - Step 5: Solve for x
x = 8,768,936,160,473,010,176/2,640,293,881.70 - Step 6: Final answer
x = 3,321,197,015.70
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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.