Finding the Fourth Proportional to 165,888,125.80, 248,832,188.70 and 125,013,322.60
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Solution
The fourth proportional to 165,888,125.80, 248,832,188.70 and 125,013,322.60 is: 187,519,983.90
Step by Step Solution
- Step 1: Write the proportion equation
165,888,125.80 : 248,832,188.70 = 125,013,322.60 : x - Step 2: Convert to fraction form
165,888,125.80/248,832,188.70 = 125,013,322.60/x - Step 3: Cross multiply
165,888,125.80x = 248,832,188.70 × 125,013,322.60 - Step 4: Simplify right side
165,888,125.80x = 31,107,338,679,217,172 - Step 5: Solve for x
x = 31,107,338,679,217,172/165,888,125.80 - Step 6: Final answer
x = 187,519,983.90
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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.