Finding the Fourth Proportional to 221,945,927.19, 306,272,917.72 and 121,474,159.76
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Solution
The fourth proportional to 221,945,927.19, 306,272,917.72 and 121,474,159.76 is: 167,627,519.95
Step by Step Solution
- Step 1: Write the proportion equation
221,945,927.19 : 306,272,917.72 = 121,474,159.76 : x - Step 2: Convert to fraction form
221,945,927.19/306,272,917.72 = 121,474,159.76/x - Step 3: Cross multiply
221,945,927.19x = 306,272,917.72 × 121,474,159.76 - Step 4: Simplify right side
221,945,927.19x = 37,204,245,338,289,400 - Step 5: Solve for x
x = 37,204,245,338,289,400/221,945,927.19 - Step 6: Final answer
x = 167,627,519.95
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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.