Finding the Fourth Proportional to 1,379,462,231.48, 2,070,107,232.84 and 758,111,378.49
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Solution
The fourth proportional to 1,379,462,231.48, 2,070,107,232.84 and 758,111,378.49 is: 1,137,669,312.07
Step by Step Solution
- Step 1: Write the proportion equation
1,379,462,231.48 : 2,070,107,232.84 = 758,111,378.49 : x - Step 2: Convert to fraction form
1,379,462,231.48/2,070,107,232.84 = 758,111,378.49/x - Step 3: Cross multiply
1,379,462,231.48x = 2,070,107,232.84 × 758,111,378.49 - Step 4: Simplify right side
1,379,462,231.48x = 1,569,371,847,910,451,712 - Step 5: Solve for x
x = 1,569,371,847,910,451,712/1,379,462,231.48 - Step 6: Final answer
x = 1,137,669,312.07
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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.