Finding the Fourth Proportional to 381,942,146.40, 572,913,263.99 and 119,647,137.02
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Solution
The fourth proportional to 381,942,146.40, 572,913,263.99 and 119,647,137.02 is: 179,470,719.43
Step by Step Solution
- Step 1: Write the proportion equation
381,942,146.40 : 572,913,263.99 = 119,647,137.02 : x - Step 2: Convert to fraction form
381,942,146.40/572,913,263.99 = 119,647,137.02/x - Step 3: Cross multiply
381,942,146.40x = 572,913,263.99 × 119,647,137.02 - Step 4: Simplify right side
381,942,146.40x = 68,547,431,793,724,160 - Step 5: Solve for x
x = 68,547,431,793,724,160/381,942,146.40 - Step 6: Final answer
x = 179,470,719.43
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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.