Finding the Fourth Proportional to 381,996,101.70, 572,994,152.55 and 163,609,280.10
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Solution
The fourth proportional to 381,996,101.70, 572,994,152.55 and 163,609,280.10 is: 245,413,920.15
Step by Step Solution
- Step 1: Write the proportion equation
381,996,101.70 : 572,994,152.55 = 163,609,280.10 : x - Step 2: Convert to fraction form
381,996,101.70/572,994,152.55 = 163,609,280.10/x - Step 3: Cross multiply
381,996,101.70x = 572,994,152.55 × 163,609,280.10 - Step 4: Simplify right side
381,996,101.70x = 93,747,160,800,215,072 - Step 5: Solve for x
x = 93,747,160,800,215,072/381,996,101.70 - Step 6: Final answer
x = 245,413,920.15
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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.