Finding the Fourth Proportional to 165,957,579.80, 248,936,369.70 and 154,620,171.80
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Solution
The fourth proportional to 165,957,579.80, 248,936,369.70 and 154,620,171.80 is: 231,930,257.70
Step by Step Solution
- Step 1: Write the proportion equation
165,957,579.80 : 248,936,369.70 = 154,620,171.80 : x - Step 2: Convert to fraction form
165,957,579.80/248,936,369.70 = 154,620,171.80/x - Step 3: Cross multiply
165,957,579.80x = 248,936,369.70 × 154,620,171.80 - Step 4: Simplify right side
165,957,579.80x = 38,490,584,250,282,312 - Step 5: Solve for x
x = 38,490,584,250,282,312/165,957,579.80 - Step 6: Final answer
x = 231,930,257.70
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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.