Finding the Fourth Proportional to 217,455,734.70, 300,088,963.35 and 119,670,590.70
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Solution
The fourth proportional to 217,455,734.70, 300,088,963.35 and 119,670,590.70 is: 165,145,442.39
Step by Step Solution
- Step 1: Write the proportion equation
217,455,734.70 : 300,088,963.35 = 119,670,590.70 : x - Step 2: Convert to fraction form
217,455,734.70/300,088,963.35 = 119,670,590.70/x - Step 3: Cross multiply
217,455,734.70x = 300,088,963.35 × 119,670,590.70 - Step 4: Simplify right side
217,455,734.70x = 35,911,823,506,645,156 - Step 5: Solve for x
x = 35,911,823,506,645,156/217,455,734.70 - Step 6: Final answer
x = 165,145,442.39
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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.