Finding the Fourth Proportional to 1,260,574,998.16, 1,891,117,601.88 and 442,751,072.08
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Solution
The fourth proportional to 1,260,574,998.16, 1,891,117,601.88 and 442,751,072.08 is: 664,216,208.38
Step by Step Solution
- Step 1: Write the proportion equation
1,260,574,998.16 : 1,891,117,601.88 = 442,751,072.08 : x - Step 2: Convert to fraction form
1,260,574,998.16/1,891,117,601.88 = 442,751,072.08/x - Step 3: Cross multiply
1,260,574,998.16x = 1,891,117,601.88 × 442,751,072.08 - Step 4: Simplify right side
1,260,574,998.16x = 837,294,345,661,728,640 - Step 5: Solve for x
x = 837,294,345,661,728,640/1,260,574,998.16 - Step 6: Final answer
x = 664,216,208.38
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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.