Finding the Fourth Proportional to 189,967,850.10, 262,156,603.68 and 107,459,863.38
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Solution
The fourth proportional to 189,967,850.10, 262,156,603.68 and 107,459,863.38 is: 148,295,160.47
Step by Step Solution
- Step 1: Write the proportion equation
189,967,850.10 : 262,156,603.68 = 107,459,863.38 : x - Step 2: Convert to fraction form
189,967,850.10/262,156,603.68 = 107,459,863.38/x - Step 3: Cross multiply
189,967,850.10x = 262,156,603.68 × 107,459,863.38 - Step 4: Simplify right side
189,967,850.10x = 28,171,312,815,617,604 - Step 5: Solve for x
x = 28,171,312,815,617,604/189,967,850.10 - Step 6: Final answer
x = 148,295,160.47
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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.