Finding the Fourth Proportional to 19,755,105,776.49, 29,638,479,715.14 and 7,958,153,657.91
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Solution
The fourth proportional to 19,755,105,776.49, 29,638,479,715.14 and 7,958,153,657.91 is: 11,939,575,440.83
Step by Step Solution
- Step 1: Write the proportion equation
19,755,105,776.49 : 29,638,479,715.14 = 7,958,153,657.91 : x - Step 2: Convert to fraction form
19,755,105,776.49/29,638,479,715.14 = 7,958,153,657.91/x - Step 3: Cross multiply
19,755,105,776.49x = 29,638,479,715.14 × 7,958,153,657.91 - Step 4: Simplify right side
19,755,105,776.49x = 235,867,575,759,932,719,104 - Step 5: Solve for x
x = 235,867,575,759,932,719,104/19,755,105,776.49 - Step 6: Final answer
x = 11,939,575,440.83
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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.