Finding the Fourth Proportional to 100,927,142.23, 139,279,517.29 and 54,517,416.65
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Solution
The fourth proportional to 100,927,142.23, 139,279,517.29 and 54,517,416.65 is: 75,234,067.94
Step by Step Solution
- Step 1: Write the proportion equation
100,927,142.23 : 139,279,517.29 = 54,517,416.65 : x - Step 2: Convert to fraction form
100,927,142.23/139,279,517.29 = 54,517,416.65/x - Step 3: Cross multiply
100,927,142.23x = 139,279,517.29 × 54,517,416.65 - Step 4: Simplify right side
100,927,142.23x = 7,593,159,475,326,154 - Step 5: Solve for x
x = 7,593,159,475,326,154/100,927,142.23 - Step 6: Final answer
x = 75,234,067.94
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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.