Finding the Fourth Proportional to 153,172,414.53, 228,563,965.53 and 136,664,217.09
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Solution
The fourth proportional to 153,172,414.53, 228,563,965.53 and 136,664,217.09 is: 203,930,423.76
Step by Step Solution
- Step 1: Write the proportion equation
153,172,414.53 : 228,563,965.53 = 136,664,217.09 : x - Step 2: Convert to fraction form
153,172,414.53/228,563,965.53 = 136,664,217.09/x - Step 3: Cross multiply
153,172,414.53x = 228,563,965.53 × 136,664,217.09 - Step 4: Simplify right side
153,172,414.53x = 31,236,515,404,143,196 - Step 5: Solve for x
x = 31,236,515,404,143,196/153,172,414.53 - Step 6: Final answer
x = 203,930,423.76
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.