Finding the Fourth Proportional to 208,920,765.18, 288,006,795.82 and 146,001,518.94
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Solution
The fourth proportional to 208,920,765.18, 288,006,795.82 and 146,001,518.94 is: 201,269,747.50
Step by Step Solution
- Step 1: Write the proportion equation
208,920,765.18 : 288,006,795.82 = 146,001,518.94 : x - Step 2: Convert to fraction form
208,920,765.18/288,006,795.82 = 146,001,518.94/x - Step 3: Cross multiply
208,920,765.18x = 288,006,795.82 × 146,001,518.94 - Step 4: Simplify right side
208,920,765.18x = 42,049,429,654,762,440 - Step 5: Solve for x
x = 42,049,429,654,762,440/208,920,765.18 - Step 6: Final answer
x = 201,269,747.50
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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.