Finding the Fourth Proportional to 165,889,207.80, 248,833,811.70 and 145,733,815.80
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Solution
The fourth proportional to 165,889,207.80, 248,833,811.70 and 145,733,815.80 is: 218,600,723.70
Step by Step Solution
- Step 1: Write the proportion equation
165,889,207.80 : 248,833,811.70 = 145,733,815.80 : x - Step 2: Convert to fraction form
165,889,207.80/248,833,811.70 = 145,733,815.80/x - Step 3: Cross multiply
165,889,207.80x = 248,833,811.70 × 145,733,815.80 - Step 4: Simplify right side
165,889,207.80x = 36,263,500,879,099,688 - Step 5: Solve for x
x = 36,263,500,879,099,688/165,889,207.80 - Step 6: Final answer
x = 218,600,723.70
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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.