Finding the Fourth Proportional to 220,424,648.87, 304,185,927.24 and 121,305,395.99
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Solution
The fourth proportional to 220,424,648.87, 304,185,927.24 and 121,305,395.99 is: 167,401,397.93
Step by Step Solution
- Step 1: Write the proportion equation
220,424,648.87 : 304,185,927.24 = 121,305,395.99 : x - Step 2: Convert to fraction form
220,424,648.87/304,185,927.24 = 121,305,395.99/x - Step 3: Cross multiply
220,424,648.87x = 304,185,927.24 × 121,305,395.99 - Step 4: Simplify right side
220,424,648.87x = 36,899,394,358,433,528 - Step 5: Solve for x
x = 36,899,394,358,433,528/220,424,648.87 - Step 6: Final answer
x = 167,401,397.93
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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.