Finding the Fourth Proportional to 209,968,203.68, 314,952,305.51 and 209,968,203.68
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Solution
The fourth proportional to 209,968,203.68, 314,952,305.51 and 209,968,203.68 is: 314,952,305.51
Step by Step Solution
- Step 1: Write the proportion equation
209,968,203.68 : 314,952,305.51 = 209,968,203.68 : x - Step 2: Convert to fraction form
209,968,203.68/314,952,305.51 = 209,968,203.68/x - Step 3: Cross multiply
209,968,203.68x = 314,952,305.51 × 209,968,203.68 - Step 4: Simplify right side
209,968,203.68x = 66,129,969,832,809,264 - Step 5: Solve for x
x = 66,129,969,832,809,264/209,968,203.68 - Step 6: Final answer
x = 314,952,305.51
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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.