Finding the Fourth Proportional to 221,601,326.47, 305,811,032.81 and 121,129,898.67
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Solution
The fourth proportional to 221,601,326.47, 305,811,032.81 and 121,129,898.67 is: 167,159,917.34
Step by Step Solution
- Step 1: Write the proportion equation
221,601,326.47 : 305,811,032.81 = 121,129,898.67 : x - Step 2: Convert to fraction form
221,601,326.47/305,811,032.81 = 121,129,898.67/x - Step 3: Cross multiply
221,601,326.47x = 305,811,032.81 × 121,129,898.67 - Step 4: Simplify right side
221,601,326.47x = 37,042,859,415,837,696 - Step 5: Solve for x
x = 37,042,859,415,837,696/221,601,326.47 - Step 6: Final answer
x = 167,159,917.34
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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.