Finding the Fourth Proportional to 8,671,638,951.39, 11,966,861,751.74 and 4,912,449,519.05
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Solution
The fourth proportional to 8,671,638,951.39, 11,966,861,751.74 and 4,912,449,519.05 is: 6,779,180,335.61
Step by Step Solution
- Step 1: Write the proportion equation
8,671,638,951.39 : 11,966,861,751.74 = 4,912,449,519.05 : x - Step 2: Convert to fraction form
8,671,638,951.39/11,966,861,751.74 = 4,912,449,519.05/x - Step 3: Cross multiply
8,671,638,951.39x = 11,966,861,751.74 × 4,912,449,519.05 - Step 4: Simplify right side
8,671,638,951.39x = 58,786,604,256,788,611,072 - Step 5: Solve for x
x = 58,786,604,256,788,611,072/8,671,638,951.39 - Step 6: Final answer
x = 6,779,180,335.61
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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.