Finding the Fourth Proportional to 179,869,204.78, 269,785,649.61 and 121,948,778.80
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Solution
The fourth proportional to 179,869,204.78, 269,785,649.61 and 121,948,778.80 is: 182,910,857.63
Step by Step Solution
- Step 1: Write the proportion equation
179,869,204.78 : 269,785,649.61 = 121,948,778.80 : x - Step 2: Convert to fraction form
179,869,204.78/269,785,649.61 = 121,948,778.80/x - Step 3: Cross multiply
179,869,204.78x = 269,785,649.61 × 121,948,778.80 - Step 4: Simplify right side
179,869,204.78x = 32,900,030,507,704,196 - Step 5: Solve for x
x = 32,900,030,507,704,196/179,869,204.78 - Step 6: Final answer
x = 182,910,857.63
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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.