Finding the Fourth Proportional to 2,640,293,845.95, 3,960,440,768.93 and 2,214,131,308.05
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Solution
The fourth proportional to 2,640,293,845.95, 3,960,440,768.93 and 2,214,131,308.05 is: 3,321,196,962.08
Step by Step Solution
- Step 1: Write the proportion equation
2,640,293,845.95 : 3,960,440,768.93 = 2,214,131,308.05 : x - Step 2: Convert to fraction form
2,640,293,845.95/3,960,440,768.93 = 2,214,131,308.05/x - Step 3: Cross multiply
2,640,293,845.95x = 3,960,440,768.93 × 2,214,131,308.05 - Step 4: Simplify right side
2,640,293,845.95x = 8,768,935,900,154,459,136 - Step 5: Solve for x
x = 8,768,935,900,154,459,136/2,640,293,845.95 - Step 6: Final answer
x = 3,321,196,962.08
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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.