Finding the Fourth Proportional to 620,241,769.35, 855,939,382.05 and 341,793,257.67
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Solution
The fourth proportional to 620,241,769.35, 855,939,382.05 and 341,793,257.67 is: 471,677,858.89
Step by Step Solution
- Step 1: Write the proportion equation
620,241,769.35 : 855,939,382.05 = 341,793,257.67 : x - Step 2: Convert to fraction form
620,241,769.35/855,939,382.05 = 341,793,257.67/x - Step 3: Cross multiply
620,241,769.35x = 855,939,382.05 × 341,793,257.67 - Step 4: Simplify right side
620,241,769.35x = 292,554,309,758,916,224 - Step 5: Solve for x
x = 292,554,309,758,916,224/620,241,769.35 - Step 6: Final answer
x = 471,677,858.89
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.