Finding the Fourth Proportional to 159,785,999.10, 239,678,998.65 and 153,515,432.70
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Solution
The fourth proportional to 159,785,999.10, 239,678,998.65 and 153,515,432.70 is: 230,273,149.05
Step by Step Solution
- Step 1: Write the proportion equation
159,785,999.10 : 239,678,998.65 = 153,515,432.70 : x - Step 2: Convert to fraction form
159,785,999.10/239,678,998.65 = 153,515,432.70/x - Step 3: Cross multiply
159,785,999.10x = 239,678,998.65 × 153,515,432.70 - Step 4: Simplify right side
159,785,999.10x = 36,794,425,186,857,464 - Step 5: Solve for x
x = 36,794,425,186,857,464/159,785,999.10 - Step 6: Final answer
x = 230,273,149.05
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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.