Finding the Fourth Proportional to 3,712,213,668.54, 5,122,989,555.83 and 2,126,612,074.62
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Solution
The fourth proportional to 3,712,213,668.54, 5,122,989,555.83 and 2,126,612,074.62 is: 2,934,801,824.56
Step by Step Solution
- Step 1: Write the proportion equation
3,712,213,668.54 : 5,122,989,555.83 = 2,126,612,074.62 : x - Step 2: Convert to fraction form
3,712,213,668.54/5,122,989,555.83 = 2,126,612,074.62/x - Step 3: Cross multiply
3,712,213,668.54x = 5,122,989,555.83 × 2,126,612,074.62 - Step 4: Simplify right side
3,712,213,668.54x = 10,894,611,447,580,227,584 - Step 5: Solve for x
x = 10,894,611,447,580,227,584/3,712,213,668.54 - Step 6: Final answer
x = 2,934,801,824.56
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.