Finding the Fourth Proportional to 5,012,261.40, 6,916,927.47 and 2,720,421.48
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Solution
The fourth proportional to 5,012,261.40, 6,916,927.47 and 2,720,421.48 is: 3,754,185.30
Step by Step Solution
- Step 1: Write the proportion equation
5,012,261.40 : 6,916,927.47 = 2,720,421.48 : x - Step 2: Convert to fraction form
5,012,261.40/6,916,927.47 = 2,720,421.48/x - Step 3: Cross multiply
5,012,261.40x = 6,916,927.47 × 2,720,421.48 - Step 4: Simplify right side
5,012,261.40x = 18,816,958,064,990.05 - Step 5: Solve for x
x = 18,816,958,064,990.05/5,012,261.40 - Step 6: Final answer
x = 3,754,185.30
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.