Finding the Fourth Proportional to 40,076,997.36, 55,306,276.38 and 21,742,278
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Solution
The fourth proportional to 40,076,997.36, 55,306,276.38 and 21,742,278 is: 30,004,354.50
Step by Step Solution
- Step 1: Write the proportion equation
40,076,997.36 : 55,306,276.38 = 21,742,278 : x - Step 2: Convert to fraction form
40,076,997.36/55,306,276.38 = 21,742,278/x - Step 3: Cross multiply
40,076,997.36x = 55,306,276.38 × 21,742,278 - Step 4: Simplify right side
40,076,997.36x = 1,202,484,436,198,793.75 - Step 5: Solve for x
x = 1,202,484,436,198,793.75/40,076,997.36 - Step 6: Final answer
x = 30,004,354.50
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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.