Finding the Fourth Proportional to 1,965,745,420.11, 2,949,032,246.09 and 637,669,759.98
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Solution
The fourth proportional to 1,965,745,420.11, 2,949,032,246.09 and 637,669,759.98 is: 956,638,975.37
Step by Step Solution
- Step 1: Write the proportion equation
1,965,745,420.11 : 2,949,032,246.09 = 637,669,759.98 : x - Step 2: Convert to fraction form
1,965,745,420.11/2,949,032,246.09 = 637,669,759.98/x - Step 3: Cross multiply
1,965,745,420.11x = 2,949,032,246.09 × 637,669,759.98 - Step 4: Simplify right side
1,965,745,420.11x = 1,880,508,684,534,302,208 - Step 5: Solve for x
x = 1,880,508,684,534,302,208/1,965,745,420.11 - Step 6: Final answer
x = 956,638,975.37
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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.