Finding the Fourth Proportional to 1,379,283,416.80, 2,069,932,894.80 and 971,136,728.80
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Solution
The fourth proportional to 1,379,283,416.80, 2,069,932,894.80 and 971,136,728.80 is: 1,457,414,651.56
Step by Step Solution
- Step 1: Write the proportion equation
1,379,283,416.80 : 2,069,932,894.80 = 971,136,728.80 : x - Step 2: Convert to fraction form
1,379,283,416.80/2,069,932,894.80 = 971,136,728.80/x - Step 3: Cross multiply
1,379,283,416.80x = 2,069,932,894.80 × 971,136,728.80 - Step 4: Simplify right side
1,379,283,416.80x = 2,010,187,860,291,586,304 - Step 5: Solve for x
x = 2,010,187,860,291,586,304/1,379,283,416.80 - Step 6: Final answer
x = 1,457,414,651.56
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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.