Finding the Fourth Proportional to 154,912,030.35, 213,782,435.44 and 84,351,508.79
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Solution
The fourth proportional to 154,912,030.35, 213,782,435.44 and 84,351,508.79 is: 116,407,169.55
Step by Step Solution
- Step 1: Write the proportion equation
154,912,030.35 : 213,782,435.44 = 84,351,508.79 : x - Step 2: Convert to fraction form
154,912,030.35/213,782,435.44 = 84,351,508.79/x - Step 3: Cross multiply
154,912,030.35x = 213,782,435.44 × 84,351,508.79 - Step 4: Simplify right side
154,912,030.35x = 18,032,870,981,686,660 - Step 5: Solve for x
x = 18,032,870,981,686,660/154,912,030.35 - Step 6: Final answer
x = 116,407,169.55
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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.