Finding the Fourth Proportional to 75,082,647.62, 103,614,053.73 and 40,743,831.62
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Solution
The fourth proportional to 75,082,647.62, 103,614,053.73 and 40,743,831.62 is: 56,226,487.64
Step by Step Solution
- Step 1: Write the proportion equation
75,082,647.62 : 103,614,053.73 = 40,743,831.62 : x - Step 2: Convert to fraction form
75,082,647.62/103,614,053.73 = 40,743,831.62/x - Step 3: Cross multiply
75,082,647.62x = 103,614,053.73 × 40,743,831.62 - Step 4: Simplify right side
75,082,647.62x = 4,221,633,558,640,753 - Step 5: Solve for x
x = 4,221,633,558,640,753/75,082,647.62 - Step 6: Final answer
x = 56,226,487.64
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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.