Finding the Fourth Proportional to 133,009,680.80, 199,514,521.20 and 129,028,368.80
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Solution
The fourth proportional to 133,009,680.80, 199,514,521.20 and 129,028,368.80 is: 193,542,553.20
Step by Step Solution
- Step 1: Write the proportion equation
133,009,680.80 : 199,514,521.20 = 129,028,368.80 : x - Step 2: Convert to fraction form
133,009,680.80/199,514,521.20 = 129,028,368.80/x - Step 3: Cross multiply
133,009,680.80x = 199,514,521.20 × 129,028,368.80 - Step 4: Simplify right side
133,009,680.80x = 25,743,033,222,349,016 - Step 5: Solve for x
x = 25,743,033,222,349,016/133,009,680.80 - Step 6: Final answer
x = 193,542,553.20
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1.5x scale
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.