Finding the Fourth Proportional to 54,082,812.21, 74,637,942.62 and 30,553,188.13
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Solution
The fourth proportional to 54,082,812.21, 74,637,942.62 and 30,553,188.13 is: 42,165,468.28
Step by Step Solution
- Step 1: Write the proportion equation
54,082,812.21 : 74,637,942.62 = 30,553,188.13 : x - Step 2: Convert to fraction form
54,082,812.21/74,637,942.62 = 30,553,188.13/x - Step 3: Cross multiply
54,082,812.21x = 74,637,942.62 × 30,553,188.13 - Step 4: Simplify right side
54,082,812.21x = 2,280,427,102,505,005 - Step 5: Solve for x
x = 2,280,427,102,505,005/54,082,812.21 - Step 6: Final answer
x = 42,165,468.28
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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.