Finding the Fourth Proportional to 639,217,349.68, 958,853,930.64 and 202,550,213.92
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Solution
The fourth proportional to 639,217,349.68, 958,853,930.64 and 202,550,213.92 is: 303,834,163.55
Step by Step Solution
- Step 1: Write the proportion equation
639,217,349.68 : 958,853,930.64 = 202,550,213.92 : x - Step 2: Convert to fraction form
639,217,349.68/958,853,930.64 = 202,550,213.92/x - Step 3: Cross multiply
639,217,349.68x = 958,853,930.64 × 202,550,213.92 - Step 4: Simplify right side
639,217,349.68x = 194,216,068,769,164,832 - Step 5: Solve for x
x = 194,216,068,769,164,832/639,217,349.68 - Step 6: Final answer
x = 303,834,163.55
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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.