Finding the Fourth Proportional to 1,440,400,832.44, 1,987,755,165.77 and 780,351,110.44
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Solution
The fourth proportional to 1,440,400,832.44, 1,987,755,165.77 and 780,351,110.44 is: 1,076,885,625.13
Step by Step Solution
- Step 1: Write the proportion equation
1,440,400,832.44 : 1,987,755,165.77 = 780,351,110.44 : x - Step 2: Convert to fraction form
1,440,400,832.44/1,987,755,165.77 = 780,351,110.44/x - Step 3: Cross multiply
1,440,400,832.44x = 1,987,755,165.77 × 780,351,110.44 - Step 4: Simplify right side
1,440,400,832.44x = 1,551,146,950,877,625,088 - Step 5: Solve for x
x = 1,551,146,950,877,625,088/1,440,400,832.44 - Step 6: Final answer
x = 1,076,885,625.13
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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.